http://mctiernan.com/dnatest.htm 6-19-2009

The MacTighernan DNA Test

McTernan / McTiernan / MacTiernan

The goal is to map all MacTighernans both geneticly and geographicly.  With 53 tests completed, 1 in process and 3 TBR, the DNA sampling in this test is random currently from 53 MacTighernans or surname variants from around the world that at the time of testing live in nine countries on five continents with no correlation except the same surname and the same close proximity of origin in Cos Leitrim, Sligo, Roscommon and Cavan. Like most Irish families, the deep time history of the MacTighernans is all but lost.

The DNA test is perhaps the only chance to begin to make any family connections as many of the MacTighernan families like a smaller scale of the larger Irish Diaspora have scattered to distant lands in the world and live there today. The spelling of the surname does not really matter as the historical spelling never seems to match the current spelling in many of the families so the Gaelic spelling of MacTighernan is used to cover all the variants of our surname.

To date, almost all 53 tested MacTighernans that know their origins come from this small area in NW Ireland shown in green on the map on the left, 450 square miles more or less with the three exceptions, Gus and Michael (NJ) whose verbal family history states that their line is from Scotland and David (CN)'s verbal family history states that his family is from the Kilarney Lakes area of Ireland. Based on the DNA study at this point in time it appears that the origins of most MacTighernans, 35 out of 53 are in Co Leitrim.  The Google earth satellite image that marks the townland origin of each MacTighernan if known is at this site:  http://mctiernan.com/McTmaps.htm

While Leitrim is one county, it is historically divided into North and South Leitrim with Lough Allen being the dividing line. In South Leitrim from the mid 1500s, the clan way of life was under serious threat. An increasingly powerful English administration was slowly but surely extending its influence and dominion. In a visit to Mohill in 1540, the Saxons destroyed the monastery and beheaded the guardian and several of the friars. By 1590, the English government forces were actively routing the local clans. All MacTighernans in the DNA test from Leitrim come from north Leitrim with the exceptions of Ed (NJ), Cathal, Scott (CO), Sean-SF and possibly Charles whose family origins are in South Leitrim.

Philip O'Rorke, The O'Ruairc of Bréifne whose family were the past kings of Drumahaire in Co Leitrim has taken this DNA test. The O'Rorke DNA web site is at http://www.familytreedna.com/public/roark/. Desmond O'Conor, The O'Conor Don, whose ancestors were the past high kings of all of Ireland has not yet agreed to take the DNA test. With the tests completed so far we 53 MacTighernans fall into 12 separate unrelated DNA groups.

Genetic diversity equals age. The more diverse genetic make up of a population in a specific area, the older it is. In all the world, Africa has the most diverse genetic makeup. Ethiopia, the Horn of Africa has the most genetic diversity in all of Africa which is where the first humans gathered to exit to populate the rest of the world. Western Europe including Ireland has the least diverse genetic population of all areas on earth. So in Africa the population moved and in western Europe they did not, genetically speaking. The Genographic project sponsored by Nationalgeographic and IBM goes into this in great detail https://www3.nationalgeographic.com/genographic/index.html Use my kit number to see the display, FWRFL845CH

There is no way to know for certain what the total number is for distinct genetically separate MacTighernans on a worldwide basis. At this time it would be a guess to say how many of us there would be worldwide. The below chart gives a reasonable approximation as to the individual MacTighernan density in Ireland and the main 4 countries of immigration as of 2004.

How many MacTighernans are there ?
As of 2004 the approximate total of individuals by country with surname spellings of McTiernan, MacTiernan, McTernan. It is safe to say that
the real total of separate MacTighernan families is less than these numbers These numbers exclude the DNA tester and their related family members if known

Ireland
122
American population by state
NY
82


NJ
26


FL
20


MA
18


PA
15


CA
15


IL
9


CT
7


OH
6


VA
6


MD
5


GA
3


CO
3


WA
3


LA
2


one each in RI, WY, AZ, MO, KA, ME, DE
7

American Total
227
UK, including England, Wales, Scotland & N. Ireland
141
Canada
32
Australia
43
Gross total of individuals with our surnames, testers not included
565

This info can be confusing so please read the headers and footers in the following grids to make it easier to understand

The 12 separate and different MacTighernan DNA groups are labeled with the letter T. It is just a naming convention as each of the DNA groups are in all ways equal, none being more pure than the other.

The genetic and geographic spread of the 53 MacTighernan testers
  41 of the 53 know their county of origin, 34 know their townland


MacTighernan Testers County of Origin

Testers that
know their townland
of origin

Tester's country
at time of test
Tester's
continent
Testers
All identified
MacTighernans
to date
DNA
Group

Leitrim
Sligo
Roscommon
Cavan
Scotland
Unknown
Total

Leitrim
30

America North
America
25
47
T
11

1
1
1
5
19

Sligo
3

Ireland Europe
9
18
Ta
2




1
3

Roscommon
1

England Europe 9
21
Tb
1





1

Cavan


Canada North
America
4
6
Tc





1
1

Scotland

Australia Australia
2
4
Td
1





1

Unknown 19

Indonesia Asia 1
1
T3
8
3




11




Zimbabwe Africa 1
1
T3a
1




1
2




Iraq Asia 1
1
T3b




1

1




Scotland Europe 1
4
T3c
1





1




Spain Europe
1
T3d
2





2




United Arab
Emirates
Asia
1
T3e 1





1








T2
7
1



2
10








Current
Total

35
4
1
1
2
10
53 
Total
53 
9
5
53  105
TBR 2




1
3








in process
at lab
1





1








The goal is to map the genetic and geographic profil of all MacTighernans, where we came from and what country we ended up in.

Below is a guess at this point in time as to the possible centers of origin for each of the 12 different MacTighernan DNA groups
12 distinct MacTighernan
DNA Group baselines

Possible Townland for the
Center of Origin for each of the 12 DNA Groups

Total #
in each
group

The Baselines,
Perfect 25 / 25

matches in
their group
1
T
Leonagh townland or Tullynacross townland or Moneenatieve or Beagh / Killavoggy townland, Co Leitrim or Mount Allen townland, Co Roscommon or Killinagh Parish, Co Cavan
19
9
2
T a
Derrinvoher or Derrinweer townland, Co Leitrim
3
3
3
T b
Feenagh townland, Co Leitrim
1

4
T c
Unknown
1

5
T d
Gortermone, Co Leitrim
1

6
T 2
Townlands of Corglancey or Greaghnafarna or Drumahaire (T) or Oughteragh parish, Co Leitrim or Co Sligo
10
4
7
T 3
Geevagh Parish or townland of Tap both in Co Sligo or Kilcoosy or Clenaghoo in Co Leitrim 11
8
8
T 3 a
Corratawy townland, Co Leitrim
2
2
9
T 3 b
TBD or Scotland ? 1

10
T 3 c
Tulcon townland, Co Leitrim
1

11
T 3 d
Gleneige or Moneyduff, Co Leitrim
2

12
T 3 e
Drumshanbo parish, Co Leitrim 1

Total MacTighernan tests completed
53

MacTighernan test in process at the lab: Jim-SGL (149592) 1
MacTighernan test TBR = To Be Returned:  Mick (122583), Seamus (128782) & Greg (149593) 3
O'Rorke test completed
1


The ancestors of the two McTernan families from Leonagh, Rory's from Mountallen, Co Roscommon and mine from Sheskin, Co Leitrim all of whom are in the T Group are buried in the Abbey of Creevelea, Co Leitrim. Rory's earliest known ancestral home is in Mountallen Townland in Co Roscommon and has the date 1671 etched in the fire place mantle which implies the year of construction of their family home. John C. McTernan [T3a], the well known Co Sligo arthur once told me that when he was the Chief Librarian of Co Sligo, he remembered seeing historical legal documents that led him to believe that the Mount Allen / Heapstown McTernan family was related to the Leonagh, Sheskin and Rockfield McTernan families. Three of these four families are buried at the Abbey of Creevelea with the Rockfield McTernans whose male line has become extent for some time being the exception.

Relationship of the DNA Groups to each other: The T and T3 Group baselines only have 16 out of 25 DYS markers that match. More than 1/3 of the markers do not match resulting in a 9 loci pattern mutation event difference. The T2 Group baseline has an 8 loci difference to the baselines of both the T Group and the T3 Group. Philip O'Rorke, The O'Ruairc of Bréifne has a 9 loci mutation event difference with the baselines of the T and the T2 Groups but only a 7 loci mutation event difference with the T3 Group baseline. The result is that none of our 12 DNA groups match any other DNA groups in this MacTighernan study.

Those in the baselines for each of the 12 separate MacTighernan DNA groups are a perfect 25 / 25 genetic match to each other in their group
DNA
Group

Total
# in
each
Group

# in
Baseline
of their
Group

Those MacTighernans with a perfect match in their specific DNA group forming their baseline are below,
excludes
The O'Ruairc of Bréifne.
6 of the 12 DNA groups have only one individual so far
T
19
9
Mark (673), Michael (CN) (3436), Martin (3713), Rory (1029), Thomas (CA) (17363), John (ST) (49265), Tony (106135), John-P & John-Rev (149591)
T a
3
3
Scott (AU) (639), Adrian (106134) & Richard (135598)
T b
1
1
John (USA) (635)
T c
1
1
Sgt. Chris McTurnan (31886)
T d
1
1
John Frank (117676)
T 2
10
4
Geoffrey (3435), Bernie (2145), Max (71428), Eugene (128783) & Philip (146792)
T 3
11
8
Leo (21151), Eoghan (636), Jim (NJ) (1010), Scott (CO) (5451), Jim (MA) (9497), John W (31885), Cathal (117675) & Sean-SF (135597)
T 3 a
2
2
David (NJ) (2392) & John C. (637)
T 3 b
1
1
Gus (8724)
T 3 c
1
1
Ed (NJ) (8723)
T 3 d
2

Sean (128784) & Thady (138618)
T 3 e
1
1
Peter (138619)
sub total
53

completed test
in process at lab
1

Jim-SGL (149592)
TBR = to be returned
3

Mick (122583), Seamus (128782)  & Greg (149593)
Total
57


The below grid shows how well we each match based on FTdna's web site http://www.familytreedna.com that shows genetic distance, 25 being a perfect match and the best possible score.

How we match, 25 is perfect match--T, Ta, Tb, Tc & Td Groups
How 25 of 53 MacTighernans in 5 of the 12 DNA Groups match each other based on mutation event differences
Group -->
19 in the T Group
3 in Ta
Tb
Tc Td

DNA
Group
Individual
Mark, Martin,
Michael (CN),
Thomas (CA),
Rory, Tony,
John (ST), John-P
& John-Rev
Michael
Jim
(CA)
Tom
David
(CN)
&
Bob
(CN)
Sean
-sol
Douglas
(CN)
Michael
(NJ)

Larry
Gene
Scott (AU),
Richard
&
Adrian
John
(USA)
Sgt.
Chris
John
Frk
Philip
O'Rorke


Mark, Martin,
Michael (CN),
Rory, Tony,
Thomas (CA),
John (ST), John-P
John-Rev
25
24
24
24
24
23
23
23
23
22
22
21
21
18
16
T
Michael
24
NA
23
23
23
22
22
22
22
21
21
20
20
19
15
T+1
Jim (CA) 24
23
NA 23
23
22
22
22
22
21
21
20
22
19
17
T+1
Tom
24
23
23
NA 23
24
22
22
22
21
21
20
20
17
15
T+1
David (CN)
& Bob (CN)
24
23
23
23
NA 24
24
24
22
21
21
20
22
19
17
T+1
Sean-sol 23
22
22
24
24
NA
23
23
21
20
20
19
21
18
16
T+2
Douglas (CN) 23
22
22
22
24
23
NA
23
23
20
21
20
23
18
17
T+2
Michael (NJ)
23
22
22
22
24
23
23
NA 21
20
20
19
21
18
16
T+2
Larry
23
22
22
22
22
21
23
21
NA 20
21
20
21
16
17
T+2
Gene
22
21
21
21
21
20
20
20
20
NA 19
18
18
15
13
T+3
Scott (AU),
Richard & Adrian
22
21
21
21
21
20
21
20
21
19
25
20
19
15
15
Ta
John (USA)
21
20
20
20
20
19
20
19
20
18
20
25
19
16
14
Tb
Sgt. Chris 21
20
22
20
22
21
23
21
21
10
19
18
25
18
19
Tc
John Frank
18
19
19
17
19
18
18
18
16
15
15
16
18
25
15
Td
Philip O'Rorke 16 15 17 15 17
16
17
16
17
13 15 14 19
15
25

DNA Group
T
T+1
T+1
T+1
T+1 T+2
T+2
T+2
T+2
T+3 Ta
Tb
Tc Td


Above numbers for perfect match of 25 / 25 are in red background - for the specific DNA groups

The below grid shows how well we each match based on FTdna's web site http://www.familytreedna.com that shows genetic distance, 25 being a perfect match and the best possible score.

How we match, 25 is perfect match--T2, T3e, T3d, T3c, T3b, T3a & T3 Groups
How 28 of 53 MacTighernans in 7 of the 12 DNA Groups match each other based on mutation event differences
Group -->
10 in the T2 Group

T3e
2 in T3d
T3c
T3b
2 in T3a
11 in the T3 Group
DNA
Group
Individual
Geoff, Bernie,
Eugene & Max
Adam Philip
Kevin
-mus
Paul
Michael
(Eng)
Jim
(P)
Philip
O'Rorke
Peter
Thady
Sean
Ed
(NJ)
Gus
David
(NJ)
&
John C
Charles
Jim
III
Joe
Leo, John W.,
Eoghan,
Jim (MA),
Scott (CO),
Jim (NJ), Cathal
& Sean-SF

Geoffrey, Eugene,
Bernard Jr. & Max
25
24
24
23
23
23
23
16
16
13
13
12
15
15
16
16
16
17
T2
Adam 24
NA
23
22
22
22
22
15
15
12
12
11
14
14
15
15
15
16
T2+1
Philip
24
23
NA
24
22
22
22
15
15
12
12
11
14
14
15
15
15
16
T2+1
Kvin-mus
23
22
24
NA
21
21
23
16
16
13
13
12
15
15
16
16
16
17
T2+2
Paul
23
22
22
21
NA
21
21
14
14
13
13
12
15
15
16
16
16
17
T2+2
Michael (Eng)
23
22
22
21
21
NA
21
15
15
12
12
11
14
14
15
15
15
16
T2+2
Jim (P)
23
22
22
23
21
21
NA 16
16
13
13
12
15
15
16
16
16
17
T2+2
Philip O'Rorke 16 15
15
16
14
15
16
NA 17
16
16
15
18
16 17 17
19 18
Peter
16
15
15
16
14
15
16
17
25
15
15
14
16
15
16
16
16
17
T3e
Thady
13
12
12
13
13
12
13
16
15
25
23
19
19
19
22
19
19
20
T3d
Sean
13
12
12
13
13
12
13
16
15
23
25
21
19
19
20
19
19
20
Ed (NJ) 12
11
11
12
12
11
12
15 14
19
21
25 18
17
18
21
19
20
T3c
Gus
15
14
14
15
15
14
15
18
16
19
19
18
25 19
20
20
20
21 T3b
David (NJ) & John C
15
14
14
15
15
14
15
16
15
19
19
17
19
25
22
21
21
22
T3a
Charles
16
15
15
16
16
15
16
17
16
22
20
18
20
22
NA
22
22
23
T3+2
Jim III
16
15
15
16
16
15
16
17
16
19
19
21
20
21
22
NA
23
24
T3+1
Joe
16
15
15
16
16
15
16
19
16
19
19
19
20
21
22
23
NA
24
T3+1
Leo, John W.,
Eoghan,
Jim (MA) ,,
Scott (CO) ,
Jim (NJ), Cathal
& Sean-SF
17
16
16
17
17
16
17
18
17
20
20
20
21
22
23
24
24
25
T3
DNA Group
T2
T2+1 T2+1
T2+2
T2+2
T2+2
T2+2
T3e
T3d
T3c
T3b T3a
T3+2
T3+1
T3+1
T3

Above numbers for perfect match of 25 / 25 are in red background - for the specific DNA groups

A 22 / 25 match or less in the above 2 grids most likely means no common genetic ancestor or the common ancestor is well beyond 2000 years or 70 generations back in time, as in T Group baseline compared to the T3 Group baseline which is a 16 / 25 match. Surnames came into existence in the year 1120 more or less. Gene who is in the T Group is an exception as his 3 mutations occurred in only one locus and is considered a radical mutation but still part of the T Group.

53 tests completed in the MacTighernan DNA test as of June 15, 2009
In process means the kit is at the testing lab, TBR means kit is to be returned
In process
at lab

TBR
Total
MacTighernans
53 
1
3
57
The O'Ruairc of Bréifne
1


1
The O'Conor Don





Totals
53
1
1
3
58

Mark most likely relates to Martin from Dublin as both families are from the townland of Leonagh. Peter McTiernan of Canada is related to Michael (CN). Turner Bluechel through his maternal line is related to Rory and his sister Alannah.  In the below grid, Joe's family of Naas, Co Kildare is related to Sean-sol.  The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.

Ancestor lines of the T Group
19 in the T Group
25 / 25
DNA Match

T baseline

24 / 25
DNA
Match
24 / 25
DNA
Match
24 / 25
DNA
Match
24 / 25
DNA
Match

23 / 25
DNA
Match
23 / 25
DNA
Match
23 / 25
DNA
Match
23 / 25
DNA
Match
22 / 25
DNA
Match **
Leonagh
Kill-
inagh
Parish,
Co
Cavan
TBD
Mountallen
& Lyonstown,
Co Roscommon & Heapstown
Co Sligo

Co
Roscom-
mon >
Ardvoley in

Beagh /
Killa-
voggy
TBD Tully-
nacross

Moneen
-atieve
Sheskin
Derryval-
anagher
Glebe

Curry
TBD
Doonkelly
5 Mile
Bourne
The Manor

TBD Scot-
land
Drum-
ahaire
Town
Co Leitrim










Hugh I
1708


















Hugh II
>1728














Hugh
1760





Hugh III
<1763









James
c. 1790



James
<1815

Thomas
1792

John
1821

Hugh IV
c. 1791

Hugh
c. 1800
Owen
1804

Patrick*

John
1826


John Sr
1817
Patrick
1821
James
c 1830

Thomas
Michael
1838

Edward
*

1844

Cpt Hugh
1837

Thomas
1846

Martin
Hugh V
1836

Edward
*
1838
Thomas
*

John*
1831

William
James
1834


Robert

John Jr.*
1847
Charles *
1859
James
Laur.
1861

Joseph
James
Sr

Will.
James

1881
Henry
1876

Thomas
1877
John
Felix Garrett
Hugh
VI*
1866

John
1874
Michael
*
1864
James
1867

Mary
John
1859

David
James
1862
Tho-
mas
John
Douglas
John
Will-
iam
1897
John John
1886
Eugene
1873
Alice
James
1889
Lill-
ian
Coyne
Hugh
1900

Joseph
James
Jr.

Louis
Edward
1915
Hugh *
Murrough
1912

Francis
1917
John Martin John
John
Francis
1901

Ellen
Flynn
*

Maisey
Wat-
son

Will-
iam
1891
Thomas
Francis
Durkin

George
1897

William
Jame
1917
James
Earl
1909
Joe
John Osborne
Rayburn
James Walter
Francis
*
Eu-
gene
1913
Helen
Whit-
ney
Joe
Walsh
James
1921
Eliz.
Lovett
Mar-
tin

3713
Thom-
as

(CA)
17363

Mich-
ael

(CN)
3436

Rory
1946
1029

Alan-
nah

John
-Rev
149591

John
(ST)

49265
Tony
106135
John
-P
134141

Mich-
ael
674
Maur-
een
Bower

Frank
Wat-
son

James
1923

Tom
Durkin

Tom
640
Mag-
gie
David
(CN)
49264
Bob
(CN)

85141
Don,
Brian
& Joe
Sean
-sol
128785

Doug-
las
(CN)
5450
Gale
Dua-
rte
Mich-
ael
(NJ)
85140
Walter
Francis
Gene
1960
9498
Marion
Martin
Pat
Fergu-
son
Kev-
in
Mark
673

Gerry


Ben
Antoi-
nett
Schap-
per
John
Lisa


Jeremy
1978

Craig
Bower

Craig
Wat-
son

Jim
(CA)
1953
646











Larry
26554



USA
Erin
USA Canada
Indo-
nesia
Aus
USA
Scot-
land
Eng
Erin
USA
Eng
Aus
USA USA
Canada Erin
Canada USA USA USA
DNA kit numbers in above chart are in Italic, other numbers are YOB. Perfect 25 / 25 matches are in red and are the baseline for the T DNA group
All townlands above are in Co Leitrim unless otherwise noted. Last row is tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800. ** = 3 mutations in one locus * = immigrant

The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.

Ancestor lines of the Ta, Tb, Tc & the Td Groups
While still in their own distinct genetic DNA Group, Scott, Richard and Adrian are a 22 / 25 match and John (USA) & Sgt Chris is a 21 / 25 match and John Frank is a 18 / 25 match with the T Group baseline.
3 in the Ta Group
Tb Group
Tc Group Td Group
25 / 25
DNA
Ta baseline
25 / 25
DNA
Tb baseline
25 / 25
DNA
Tc baseline
25 / 25
DNA
Td baseline
TBD Derrinvoher / Derrinweer
Fenagh
TBD
(McTiernan to McTurnan)
Gortermone











John
1782




Hugh *
1808
John
<1825


Francis

Thomas
1845
Patrick
1850
William
Glennan
1853
Hugh
1845

James
Julius
Charles
c. 1855
James
McTereny
John
1874
Harold
Edward
John
Hubert
William
Glennan
Hugh*
1865
Samuel
Ashley
Frank
Michael
1873
Selwyn
1906
Bernard
1913
Leo
Allan
Douglas
Oscar
Glennan
Hugh
1896

William
Willard
John George
Michael
Francis
Leo
1934
David
(AU)
1954
Richard
135598
Nicholas
Trevor
James
Margaret
Donoghoe

Hugh
1924

William
Randy
Dan John
Frank
117676
Jacqueline
Adrian
106134
Scott
(AU)
639


Nicholas
Michael
Glennan
Donoghoe
John
(USA)
635
Chris
Lee
31886

Kim
Selina
Tanner
Eng
Australia
USA
Iraq USA
USA Eng
DNA kit numbers in above chart are in Italic, other numbers are YOB. Perfect 25 / 25 matches are in red and are the baseline for their specific DNA group
All townlands above are in Co Leitrim unless otherwise noted. Last row is tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800
* = immigrant

The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.

Ancestor lines of the T2 Group
10 in the T 2 Group
25 / 25
DNA Match
T 2 baseline
TBR
24 / 25
DNA Match
24 / 25
DNA Match
23 / 25
DNA Match
23 / 25
DNA Match
23 / 25
DNA Match
23 / 25
DNA Match
TBD
Co Sligo
TBD TBD Greaghnafarna

Corcusconny

Drumahaire
(T)
Killeen, Kilmore or Drumkeel in Killargue parish
then Lisgavneen

Corglancy Co
Leitrim
Co Leitrim






Farrell
1710-10-8-1781









? McTiernan c 1745









? McTiernan c 1780









Michael
c 1810

Owen
c 1795


Patrick
1836
Bernard
Owen
John

Hugh F.
1846

Bryan
1829
James
A
James
John
c1866
Bernard
Sr.
William
Anne

James
Patrick
c 1875
Charles
1889
Hugh*
1887
James
Hugh
c 1882
Beatrice
c 1885
Patrick*
1873
John*
1876
Terrance
1884
James
A
John*
1880
John
1893
Bernard
Jr
.

1917
2145
David
John


Eugene
128783

Mary
John
(consol)

Seamus
128782

John
Patrick
1905
Martin
1921
Charles
Michael
Hugh
J. (Bos)
1918
James
1922
Francis
1926
John
Duggan
1899
Bridget
Duggan
1900
Mary
c. 1896
John
c. 1897
2 kids
b. MA
Bernard Edward James
A
Francis
James
1918
Geoff
3435
Bernard
III
Max
1973
71428


Anne
Conlon

Pat

John
Patrick
1940
Philip
146792
Kevin
-mus
134142


Holly
Dr
Anne






Sarah
Murphy
Michael
(Eng)
5449
Jim (P)
63418
Paul
Edwin
73917
Sue
Calvert



Owen



Adam
Patrick
19343
Simon
Jarlath

Amanda
McClain
Rachel
Tompa






Michelle
Gerard


Matt
Eng USA Eng Erin
England England
Erin USA
England
USA USA
DNA kit numbers in above chart are in Italic, other numbers are YOB. Perfect 25 / 25 matches are in red and are the baseline for the T2  DNA group
All townlands above are in Co Leitrim unless otherwise noted. Last row is tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800.  * = immigrant

The McTernan family history from Tullycorka written by Brother Gerald McTernan shows that he is related to Jim (NJ). Leo, Eoghan, Jim (MA), Jim (NJ), John W., Cathal and Scott (CO) match 25 / 25 with the conclusion that these Leitrim and Sligo McTiernan families are connected. John L., Cindi, Maryellen and Kathy are related to Scott (CO).  The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800. Mary, the sister of Cathal's Great Grandfather James married Michael MacTiernan, "The Bull" from Clenaghoo.  James 1876-, had four additional siblings, Patrick, Bridget, Ellen & Mary Gaffney, nee McTiernan

Ancestor lines of the T 3 Group
11 in the T 3 Group
25 / 25
DNA Match
 T 3 baseline

24 / 25
DNA Match
24 / 25
DNA
Match
23 / 25
DNA Match


Kil-
coosy

Tullycorka
Tap / Ummeryroe
Co Sligo

Clenaghoo then
Aghataway Upper then
Ballinamore Town
in Oughteragh parish
Clenaghoo then
Ballinamore Town
in Oughteragh parish
Oughteragh
Parish
Killargue
parish
then
Greaghna-
glogh
Lavaur
?
Knocks
/ Glebe




















widow Tiernan



Seamey
c 1780

Michael
c 1779
Thadd-
eus

Phelim
<1800

James Tierney
1813

Terrance
c 1800

Phelim
1789

Patrick
c 1815


Lawrence*
c 1810
James
1806
William
I
Hugh
c 1809
James J.
Patrick
<1836

Owen
Tierney*
1864

James
Joseph*
1837

Tho-
mas
1829

Michael
1838

Tho-
mas
1837
James
Mary
Patrick
c 1839

John*
1846-1911
James
(Patrick)
1846
William
II
1846
Hugh
c 1845
James
S. *

James
1856

Patrick
1859

James
Tierney

Pat*
1861

Michael
Joseph*
1875
John
Francis
Ed-
ward

John
Joseph
1879

Patrick James
1876

Francis
1874
Rose
Anne
1884

John
1869

Joseph
Elcock
James
Mich-
ael
John*
1897
James
Augus-
tine I
Edward
*
Francis
X.

James*
1897

Felix*
1904

Robert
McTiernan
Sir
Edward

Joseph
1920
Claire
Wini-
fred

Sean
1919

Mich-
ael
Matt,
Gerry,
Christina
& Larry
Tony
Cathal
1921
Helena

James
Patrick*
1911

John H Joseph
Ed-
ward
James
Mich-
ael
Joe
1028
Mar-
garet
James
Augus-
tine II
Charles
638
John
W

31885

John
1934

Jim
(NJ)

1010

Maur-
een
Hatch

Jim
(MA)

9497


Leo
21151
Stan
Masters
Mary
Ann
Orrico

Eoghan
1958
636

Austin
Ann
David
Cathal
1958
117675
Austin
Quinn



Kevin
Patrick
1945

Gary
John R Mary
Ellen
Fargey
Scott
(CO)

5451
Kevin
Jim
Murphy
Jim
III
122584

Adam
Brian
1971









Felim






Sean
-SF
135597

Meg-
an

Shan-
non


Cindi Kathy




USA USA
USA
Aus USA USA
USA Eng
Erin Erin USA USA USA USA
USA
DNA kit numbers at the bottom are in Italic, other numbers are YOB. Perfect 25 / 25 matches are in red and are the baseline for the T3 DNA Group
All townlands above are in Co Leitrim unless otherwise noted. Last row is tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800. * = immigrant

The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.
Ancestor lines of the T3e, T3d, T3c, T3b & the T3a Groups
While still in their own dinstinct genetic DNA Group, Ed (NJ) is a 20 / 25,  David (NJ) & John C. are a 22 / 25, Gus is 21 / 25, Sean & Thady are a 20 / 25 and Peter is a 17 / 25 match with the T3 baseline
T3e
T3d
T3c T3b 2 in T3a
25 / 25
DNA Match
T 3e baseline
23 / 25
DNA Match

T 3d with 2 mutations
25 / 25
DNA Match
T 3c baseline
25 / 25
DNA Match
T 3b baseline
25 / 25
DNA Match
T 3a baseline
Drumshanbo
Parish
Gleneige
Glencar
Newtown
Mannor

Moneyduff
Conray,
Mulkaun

Tulcon Scotland
TBD
Corratawy






























Stephen
<1800

Bryan




Terence*
1825-1884
Patrick Patrick
1854
Bryan
1851
Bernard
Tiernan
<1846

James
*
1834

Martin
c 1814

Terence
Stephen
1859-1921
Patrick
Michael
1894
Patrick
1891
Francis*
1876

Charles

James
1859

Charles
1844

Stephen
Terence
1901-1953
Sean
128784
Thady
138618
Charles
Paddy
Pascal
Theresia
Levis

Maurice
1922

Farrell
Patrick
James
1890
Martin
1892
Charles
Peter
1932
138619



Pascal

Charles
Michael
Ed (NJ)
8723
Nancy
(DC)

Farrell
Ramsey
David
(NJ)

1920
2392
John C.
637
Kevin
Mark
1957









Gus
8724


Mark
Eng
Erin
USA Zimbabwa
Africa
USA
Erin
DNA kit numbers at the bottom are in Italic, other numbers are YOB. Perfect 25 / 25 matches are in red and are the baseline for their specific DNA Group
All townlands above are in Co Leitrim unless otherwise noted. Last row is tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800. * = immigrant

The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.

MacTighernans & their ancestors that should want to do the DNA test
1st table of 22 of 44 MacTighernans yet to be tested
1
2
3
4
5
6
7
8
9
10
11 12
13
14
15
16
17
18
19
20
21
22
TBD TBD TBD TBD TBD Bellanagh
Co Cavan

Leonagh
TBD
TBD TBD TBD TBD
Sweet-
wood /
Killavoggy
Killa
-voggy
Beagh Lavaur
TBD TBD TBD
TBD TBD
TBD














































































Mary
McTernan
1800



William












John





Felix
McGovern


Patrick Patrick


Myles









James





John
McGovern


James John


Michael







Leo
Michael
Tierney
*

Mary
Ellen
Traynor





Ben
McGovern

Michael Bridget
John
Kath-
erine
Bradley

Willie


Hugh
Joseph




Roger

Francis
John
Arthur
Martin
Traynor

John
Tripp





Ben
McGovern


Mike
-UK
Gerry
Shea
1926


daug?



Garlan Ken
Larry-
CT
Paul
(NY)
Roger
Jim
(Spc)
James
(GA)
Gerald,
James,
John

Gary
McTiernan

Mary
Traynor

Garrett
Dan
Myles
Edwin
Veronica
Gwen
Brogdon
Gerard
1950

Gerry
Shea



William
Young
Rita



USA USA
USA USA USA USA USA USA USA USA USA USA
USA USA Eng
USA
USA USA USA
USA
USA
USA
Any female MacTighernans listed above must have a male relative with the surname of MacTighernan do the DNA test
All townlands above are in Co Leitrim unless otherwise noted. 2nd last row would be tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800.  * = immigrant

Gwen Brogdon's McTernan line comes from the townlands of Killavoggy and Sweetwood Lower in Co Leitrim which are two of the townlands that were owned by Rory's McTernan family from Mountallen and Heapstown.

The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800

MacTighernans & their ancestors that should want to do the DNA test
2nd table of 10 of 44 MacTighernans yet to be tested
23
24
25
26
27
28 29
30
31
32
TBD
Kilcoosy or
Carrickmacrocary

Blacklion / Gubaveeny
Co Cavan
Ballin-
togher
Co Sligo
TBD TBD TBD
Scot-
land
Co
Leitrim
Drumshanbo
Parish





















James
McTernan









Hugh
Tierney
Michael






James
1846-1885
Cornel-
ius
Hugh
Tierney
1868
Thomas Edward






James Percy
1878
Joseph
1880

John
William
1875

Daniel
Francis
Ellen
Trainer
Edward Michael
1916

Michael


Gordon
David

James
1914-1989
Harry
1912

John
1909



Daniel
Francis

Eileen
Santen
Son
Helene Berna-
dette

John


Gordon
David

Andy
71427
Stephen
Richard
Terence


Greg
149593
Erin


Deirdre
Mullen
Tim /
Willie
Trent
Mick
-aus
Ian
Wenona
Suydam
Martina






Canada
Canada
Canada Canada Erin
Canada
/ Erin
Aus Aus Eng
Eng
Erin
U A
Emirates
Eng
Any female MacTighernans listed above must have a male relative with the surname of MacTighernan do the DNA test.
All townlands above are in Co Leitrim unless otherwise noted. 2nd last row would be tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800.  * = immigrant

The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.

MacTighernans & their ancestors that should want to do the DNA test
3rd table of 8 of 44 MacTighernans yet to be tested
33
34
35
36
37
38
39
40
Drumshanbo
Parish
Skeen More
Dromore
Co Sligo
TBD
TBD
TBD
TBD
Drumahaire
Town
Drumahaire
Town







































Patrick
Thomas





Michael
?
?
James
John
Patrick

Patrick
Daniel




Michael

Patrick
Moira
Kevin
Joan
Good
son
John
-pol
Oliver
Chris
- UK
Kevin
-tax
Barry


Jim-SGL
149592












Erin
Erin
Scotland
Eng
Eng
Erin
Erin Erin
Any female MacTighernans listed above must have a male relative with the surname of MacTighernan do the DNA test
All townlands above are in Co Leitrim unless otherwise noted. 2nd last row would be tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800



The symbol "<" is an event that occurred before that year and a ">" is an event that occurred after that year, e.g. <1800 means born before 1800.
MacTighernans & their ancestors that should want to do the DNA test
4th table of 4 of 44 MacTighernans yet to be tested
41
T 2
42
43
44
Mullagh /
Greaghnafarna
Greaghnafarna
Corcusconny TBD
Caddagh
Glebe

























James?
1806




Patrick Owen
John


Patrick Annie
Patrick
James


Catherine
Staley

Eugene
128783
Mary
John
(consul)
Seamus
128782


Mick
122583
Terry
26553

Patricia Ann
Patterson

Anne
Conlon
Pat




Amanda
Krisco


Owen


Ramon


USA
Erin
Spain
Erin
Any female MacTighernans listed above must have a male relative with the surname of MacTighernan do the DNA test

All townlands above are in Co Leitrim unless otherwise noted. 2nd last row would be tester's location at the time of the test
Ancestors in the light colored row in the above grid were born c. 1800.  * = immigrant

 

Known Townland of Origin for the McTernans / McTiernans / MacTiernans in the DNA test
Perfect 25 / 25 matches have a red background and are the baseline for each of the 12 DNA groups with each group in thier own color
Individual, kit # & DNA group
Townland
of Origin
County
Barony Civil
parish
Catholic
parish
Dioceses P L U Probate
District

Registrar
District
Mark McTernan 673 T
Martin McTiernan
3713 T
Leonagh
Leitrim
Drumahaire
Killarga
Killargue
Kilmore
Manorhamilton
Ballina
Drumahaire
Michael (CN) McTernan 3436 T
TBD








Rory MacTiernan 1029 T
Mountallen
Heapstown
Lyonstown
Roscommon
Sligo
Roscommon
Boyle
Tirerrill
Boyle
Kilronan
Kilmacallen
Ardcarne
Kilronan
Riverstown
Cootehall
Elphin
Boyle
Sligo
Boyle
Taum
Ballina
Taum
Keadew
--
Keadew
Thomas (CA) McTernan 17363 T
TBD Cavan Tullyhaw
Killinagh
Killinagh
Kilmore
Enniskillen
Cavan

John (ST) McTernan 49265 T
TBD








Tony McTiernan 106135 T
Tullynacross
Leitrim
Drumahaire
Killarga Killargue Kilmore Manorhamilton Ballina Drumahaire
John-P McTiernan  134141 T
Moneenatieve
Leitrim Drumahaire Killarga Killargue Kilmore Manorhamilton Ballina Drumahaire
John-Rev McTernan 149591 T

----
Ardvoley in
Beagh / Killavoggy
Roscommon
---
Leitrim
---
Drumahaire
---
Killanummery
---
Killanummery
---
Ardagh
---
Manorhamilton
---
Ballina
---
Drumahaire
Michael McTiernan 674 T + 1
Sheskin
Leitrim
Drumahaire
Killarga
Killargue
Kilmore
Manorhamilton
Ballina
Drumahaire
Jim (CA) McTiernan 646 T + 1
Derryvalannagaher
Glebe
Leitrim
Drumahaire
Inishmagrath
Inishmagrath
Kilmore
Manorhamilton
Ballina
Drumkerran
Tom McTernan 640 T + 1
Curry
Leitrim
Drumahaire
Killarga
Kilmore
Manorhamilton
Ballina
Drumahaire
David (CN) McTiernan 49264 T + 1
Bob McTiernan (CN) 85141 T + 1
TBD







Sean-sol McTernan (128785) T + 2 Doonkelly
The Manor
FiveMile Bourne
Leitrim Drumahaire Drumlease Drumahaire Kilmore Manorhamilton Ballina Drumahaire
Douglas McTiernan (CN) 5450 T + 2
TBD








Michael (NJ) McTiernan 85140 T + 2 TBD
Scotland ?






Larry McTernan 26554 T + 2 Drunahaire (T)
Leitrim
Drumahaire Drumlease Drumlease Kilmore Manorhamilton Ballina Drumahaire
Gene McTiernan 9498 T + 3
TBD
Leitrim






Scott (AU) McTiernan 639 T a
Richard McTernan 135598 T a
Derrinvoher
/ Derrinweer
Leitrim
Drumahaire
Inishmagrath
Inishmagrath
Kilmore
Manorhamilton
Ballina
Drumkerran
Adrian McTiernan 106134 T a
TBD








John (USA) McTernan 635 T b
Fenagh
Leitrim
Rosclogher
Killasnet
Killasnet
Kilmore
Manorhamilton
Ballina
Lurganboy
Sgt. Chris McTurnan 31886 T c
TBD








John Frank McTernan 117676 T d
Gortermone Leitrim Drumahaire Killarga Killargue Kilmore Manorhamilton Ballina Drumahaire
Geoffrey McTernan 3435 T2
Bernard McTernan Jr. 2145 T2
Max McTernan 71428 T2
Eugene McTernan 128783 T2
TBD
TBD
TBD
Greaghnafarna
Sligo
--?--
--?--
Leitrim
?
?
?
Drumahaire
?
?
?
Killanummery
?
?
?
Killanummery
?
?
?
Ardagh
?
?
?
Manorhamilton
?
?
?
Ballina
?
?
?
Drumahaire
Adam McTiernan 19343 T2 + 1
Drumahaire (T) Leitrim Drumahaire Drumlease Drumlease
Kilmore Manorhamilton Ballina
Drumahaire
Philip McTernan  146792 T2 + 1
+++++++
Kevin-mus McTernan 134142 T2 + 2
+++++
Hugh (Bos)
Dr Anne McTiernan
TBD
****
Lisgavneen
++++
Drumkeel /
Lisgavneen /
Killeen /
Kilmore
Leitrim Drumahaire Killarga
++++
Killarga /
Killanummery /
Drumlease
Killargue
++++
Killargue /
Killanummery
& Killerry /
Drumlease
(Drumahaire)
Kilmore Manorhamilton Ballina Drumahaire
Paul McTiernan 73917 T2 + 2 TBD
Leitrim







Michael (Eng) McTiernan 5449 T2 + 2
Corglancey Leitrim Drumahaire Killanummery Killanummery Kilmore Manorhamilton Ballina Drumahaire
Jim (P) McTernan 63418 T2 + 2
TBD
Leitrim






Peter McTiernan  138619 T3 e TBD Leitrim Leitrim Killoghert Drumshanbo Ardagh Carrick-on-Shannon Cavan Drumshanbo
Sean McTernan 128784 T3 d
Gleneige
Glencar
Newtown
Manor
Leitrim Drumahaire Drumlease Drumlease Kilmore Manorhamilton Ballina Drumahaire
Thady McTernan 138618 T3 d
Moneyduff
---
Conray
---
Mulkaum
Leitrim Drumahaire
---
Drumahaire
---
Roscloghe
Drumlease
---
Drumlease
---
Killasnet
Drumlease
(Drumahaire)
--
Drumlease
(Drumahaire)
---
Killasnet
Kilmore Manorhamilton Ballina Drumahaire
Ed (NJ) McTiernan 8723 T3 c
Tulcon
Leitrim Mohill
Cloon
Cloon
Ardagh
Mohill
Cavan
Mohil
Gus McTiernan 8724 T3 b
TBD
Scotland ?






David (NJ) McTernan 2392 T3 a
TBD








John C. McTernan 637 T3 a
Corratawy
Leitrim
Drumahaire
Killarga
Killargue
Kilmore
Manorhamilton
Ballina Drumkerran
Charles McTiernan 638 T3 + 2
Knocks / Glebe
Leitrim
Carrigallen
Drumreilly
Drumreilly Lower
Kilmore
Bawnboy
Cavan
Ballinamore
Jim McTiernan III 122584 T3 + 1
Lavaur ?
Leitrim Leitrim Killoghert Murhann /
Drumshanbo
Ardagh Carrick on
the Shannon
Cavan Drumshanbo
Joe McTiernan 1028 T3 + 1
Greaghnaglogh
Leitrim
Drumahaire
Inishmagrath
Inishmagrath
Kilmore
Manorhamilton
Ballina
Drumkerran
John W McTiernan 31885 T3
Kilcoosy Leitrim Drumahaire Drumlease Drumahaire Kilmore Manorhamilton Ballina Drumahaire
Scott (CO) MacTiernan 9497 T3
TBD
Leitrim
Carrigallen Oughteragh Ballinamore Kilmore Bawnboy Cavan Ballinamore
Jim (MA) McTiernan 9497 T3
Tap
Sligo Tirerrill Shancough
Geevagh
Elphin
Boyle Ballina

Leo McTiernan 21151 T3
Eoghan McTiernan 636 T3
Ummeryroe
Sligo
Tirerrill
Shancough
Geevagh
Elphin
Boyle
Ballina

Jim (NJ) McTernan 1010 T3
Tullycorka
Leitrim
Drumahaire
Inishmagrath
Inishmagrath
Kilmore
Manorhamilton
Ballina
Drumkerran
Cathal McTiernan 117675 T3
Clenaghoo
------
Aghatawny Upper
-----
Ballinamore Town
Leitrim Carrigallen Oughteragh Ballinamore Kilmore Bawnboy Cavan Ballinamore
Sean - SF McTiernan 135597 T3
Clenaghoo
-----
Ballinamore Town
Leitrim Carrigallen Oughteragh Ballinamore Kilmore Bawnboy Cavan Ballinamore

Mark 673's & Martin 3713's townland of Leonagh, Co Leitrim is now in the Catholic sub parish of Creevelea as listed in the above chart. Back in time [c 1857 or before] Leonagh was in the Catholic Parish of Killargue. Leonagh lies on the shore of Belhavel Lake at the upper end of Killargue parish and is today a sub parish of Drumkeerin. [6-7-2001 letter from Padraic Cullen]. Mountallen, the townland of origin for Rory [kit 1029] in Kilronan parish in Co Roscommon. Rory's Mountallen.

Townland of Origin for the McTernans / McTiernans / MacTiernans that have not yet taken the DNA test
Individual
& kit #
Townland
of Origin
County
Barony Civil
parish
Catholic
parish
Dioceses P L U Probate
District

Registrar
District
Patt Patterson Mullagh
----
Greaghnafarna
Leitrim Drumahaire Killanummery Killanummery
-----
Drumlease
Ardagh Manorhamilton Ballina Drumahaire
Seamus McTiernan (128782)
Anne
Corcusconny
Leitrim
Drumahaire Killanummery Killanummery
---
Ballintogher
Ardagh Manorhamilton
Bellina
Drumahaire
Mike McTernan - UK
Beagh Leitrim Drumahaire Killanummery Killanummery Ardagh Manorhamilton Bellina Drumahaire
Barry McTernan
Drumahaire (T)
Leitrim Drumahaire Killanummery Killanummery Ardagh Manorhamilton Bellina Drumahaire
Gerard McTernan
Killavoggy
Leitrim Drumahaire Killanummery Killanummery Ardagh Manorhamilton Bellina Drumahaire
Gwen Brogdon Killavoggy /
Sweetwood Lower
Leitrim Drumahaire Killanummery Killanummery
& Killerry
Ardagh Manorhamilton Ballina Drumahaire
Mick McTiernan (122583) Caddagh Glebe Leitrim Drumahaire Killanummery Killanummery Ardagh Manorhamilton Ballina Drumahaire
Gerry Shea Lavaur Leitrim Leitrim Kiltoghert Drumshanbo Ardagh Carrick-on-Shannon Cavan Drumshanbo
Andy McTiernan (71427) TBD Leitrim Leitrim Killoghert Drumshanbo Ardagh Carrick-on-Shannon Cavan Drumshanbo
Mary Traynor
Leonagh
Leitrim
Drumahaire
Killarga
Killargue Kilmore
Manorhamilton
Ballina
Drumahaire
Eileen Santen
Kilcoosy
Leitrim
Drumahaire Drumlease Drumlease
(Drumahaire)
Kilmore Manorhamilton Ballina Drumahaire
Jim McTiernan-SGL (149592)
Drumahaire (T) Leitrim Drumahaire Drumlease Drumlease
(Drumahaire)
Kilmore Manorhamilton Ballina Drumahaire
Martina McTiernan
TBD
Leitrim






?
Tim or Willie McTiernan Ballintogher Sligo Tirerrill Killerry Killanummery
/ Killerry
Elphin Sligo Ballina ?
Joan Good
Dromore /
Skreen More
Sligo
Tireragh
Kilmacshalgan
/ Skreen
Dromore West /
Skreen & Dromard
Killala Dromore West
Ballina ?
Helene McTiernan
& Deirdre Mullen
Gubaveeny
----
Blacklion
Cavan
Tullyhaw
Killinagh
Killinagh
Kilmore
Enniskillen
Cavan
?
Gary McTiernan Bellanagh Cavan Clanmahon Kilmore Carrick-Finea Ardagh Cavan Cavan ?
Ken MacTiernan
TBD






?
John McTernan - pol
TBD







?
Greg McTiernan
TBD







?
Ramon McTernan
TBD







?
Veronica McTiernan
TBD







?
Larry McTiernan - CT
TBD







?
Greg McTiernan (149593)
TBD







?
Any female in the above grid must have a male relative with the surname of MacTighernan take the DNA test.

Gwen Brogdon's McTernan line is from the townlands of Killavoggy and Sweetwood Lower in Co Leitrim. Those two townlands were mentioned in the last Will of James McTernan of Heapstown and Mountallen, the ancestor of Rory MacTiernan.  John-Rev's line comes from Killavoggy also. The latitude N 54.09.00 is the line running east to west along the north shore of Lough Allen in Co Leitrim. Almost all of the MacTighernans originate in the area covered by N 54.19.50 to N 53.48.35 degrees to W 8.43.48 to W 7.06.20 degrees.

The origins of the MacTighernans that know their townland of origin are between the latitudes of N 53.48.35 to N 54.19.50 and the longitudes of W 7.06.20 to W 8.43.48.   The Geographic map showing the townland locations by longitude and latitude is at http://mctiernan.com/McTmaps.htm  The specific location in longitude and latitude of known townlands is detailed on this web site along with some early MacTighernan history: http://mctiernan.com/location.htm

This web site gives a very good view of the wider Irish DNA studies for 1750 Irish families. http://www.familytreedna.com/public/IrelandHeritage

The MacTighernan castle ruins is at this web site: http://mctiernan.com/castle.htm

A recent study by Brian Mcvoy was conducted at Trinity College Dublin, Ireland, which found that a striking percent of men in Ireland (and quite a few in Scotland) share the same Y chromosome, suggesting that the 5th-century warlord known as "Niall of the Nine Hostages" may be the ancestor of one in 12 Irishmen. Niall established a dynasty of powerful chieftains that dominated the island for six centuries. The T3 Group baseline matches Niall's DNA 23 / 25 so they would descend from Niall, his uncle, his cousin or his brother. The remaining DNA groups in the MacTighernan study are not even close. Details are at this web site: http://www.familytreedna.com/matchnialltest.html

Several of the most recent MacTighernans tested have scored a higher number of mutations than previous testers, i.e. Gus in the T3b Group & Ed (NJ) in the T3c Group and Michael (Eng) in the T2 Group. Michael (Eng) had a 3 step mutation in locus 25 which is very unusual but loci 21 - 25 mutate more frequently than others. The problem here is that the last four loci have a different way of being tested. What looks like individual mutations can and most often are repeat mutations. This poses the problem of how to score the test and then secondarily how we relate to each other. FamilytreeDNA has published a web site that is based on mutation event differences which is a combination of both differences in loci and differences in mutations.

The mutation event difference takes into account false repeats in loci 464a-d that look like mutations but aren't. Michael (Eng)'s has a 3 loci difference with a total of 5 mutations from the T2 baseline. Off the FTdna web site Michael (Eng) shows an mutation event difference of 2 to his T2 baseline not a difference of 3 loci or 5 mutations. All but one of Michael (Eng)'s mutation activity is in the last 4 loci [464a-d] which is the most confusing to score. So I have changed all our scores on how we match up and relate to each other to reflect what the FTdna lab test site says they are. However, the raw scores have not been altered, being listed exactly as they have been reported.

This indicates that the MacTighernan testers have fallen into twelve unrelated, separate and distinct DNA groups. This is based on recent studies, where the FTdna lab now says that if you have a 2 mutation event difference [23/25] you still relate and the probability of a close relationship is good, however the results show mutations and therefore more time has elapsed between the common ancestor for yourself and the others that you match 23 / 25 or better. If your have a 3 mutation event difference [22/25] you probably do not relate and are outside of the closest DNA group. Both Scott (AU) and Gene are 3 event mutations off the T Group baseline. Scott (AU)'s 3 event mutations are spread over 3 different loci. Gene's on the other hand are all in one locus, locus # 1. Based on this and the lab's opinion that it is a radical mutation Gene is listed in the T Group whereas Scott (AU) is not. Scott (AU) forms his own separate DNA Group, Ta which is one of the 12 DNA group.

Chris McTurnan's scores are off 4 from the T Group baseline which genetically puts him outside of the T Group baseline. However, Chris does match Douglas (CN) 23 / 25 which means that he and Douglas (CN) genetically relate. Douglas (CN) is in the T Group and Chris's 4 mutations are among the 12 that have the highest frequency rate. So Chris may in fact be closer to the T Group baseline than the scores suggest but that has to be better understood. Being consistent at least until more is understood, Chris will begin the ninth DNA Group called Tc.

The below grid has the raw test scores. The terms locus [loci is the plural of locus] and DYS all pretty much mean the same thing. I would just look at them as categories. DYS stands for: D = DNA, Y = Y-chromosome, S = (unique) segment. The DYS numbering scheme (e.g. DYS390, DYS394) for the Y-STR haplotype loci is controlled and administered by an international standards body called HUGO Human Gene Nomenclature Committee based at University College, London. DYS is the scientific allele number.

Each tester's scores are valid and differences are only considered mutations when contrasted to the baseline of their closest DNA group. As an example all testers that are listed as T + 1 or T + 2 are in the T Group but show mutations off of the T Group baseline by one or two. While the Ta, Tb, Tc & Td testers are outside of the T Group baseline range and in their own specific group their mutations are still compared to the T Group baseline. The T3a, T3b & T3c groups are outside the T3 Group baseline range as well and their mutations are also shown off the T3 Group baseline. All testers in the T2 Group likewise show mutations against the T2 Group baseline

Each individual's test results are matched and compared to the baseline of their closest specific DNA group and all the other MacTighernans. Those that have a perfect match i.e. 25 / 25 in their specific DNA group become part of the baseline of their DNA group. At this time seven of the twelve DNA groups have only one individual. Eoghan and Jim (NJ) both in the baseline of the T3 Group match each other on the 37 marker test, 36 / 37 which means they closely relate and in fact are 4th cousins one generation removed.

As stated earlier my goal is to map the genetic and geographic profil of all MacTighernans specifically from their origins to the country they live in presently. If you are a close genetic match with another MacTighernan in your DNA group you may have a lot of work to do to find a common ancestor but still you are on the right path.  Also, the remaining mystery in our DNA test group is if one of us is off a specific baseline by 3 or 4 mutations or rather mutation events which implies that you are in a whole separate and distinct DNA group and you do not genetically relate to that baseline or your common ancestor is well beyond 2000 years or 70 generations back in time then that leaves the question of how we all ended up with identical surnames, if surnames only began in the year 1120. A guess is that way back in time before surnames came into use there existed in or around Cos Leitrim, Roscommon, Sligo or Cavan a tribe or clan whose leader was called MacTighernan. In Gaelic, MacTighernan means "son of Lord". When surnames first started all the male warriors might have just taken the chief's name for themselves which might be a reasonable explanation or guess as to how we all ended up with twelve different genetic groups from one small area of Connacht, Ireland all with the same surname.
 
Scores
MacTighernan actual raw test scores & event mutations for the 12 DNA groups

Each of the groups are in a different color. Single step mutations off a baseline in the below grid are in red ( ) and 2 or 3 step mutations
are in dark blue [ ] The testers in the left column that are the baselines for each of the individual 12 DNA groups have a light red background

Individual,
kit # &
12 DNA Groups
loci
1
loci
2
loci
3
loci
4
loci
5
loci
6
loci
7
loci
8
loci
9
loci
10
loci
11
loci
12
loci
13
loci
14
loci
15
loci
16
loci
17
loci
18
loci
19
loci
20
loci
21
loci
22
loci
23
loci
24
loci
25
DYS
393
DYS
390
DYS
19 /
394
DYS
391
DYS
385a
DYS
385b
DYS
426
DYS
388
DYS
439
DYS
389i
DYS
392
DYS
389ii
DYS
458
DYS
459a
DYS
459b
DYS
455
DYS
454
DYS
447
DYS
437
DYS
448
DYS
449
DYS
464
a
DYS
464
b
DYS
464
c
DYS
464
d
Mark 673 T, Tony 106135 T
Martin 3713 T
Michael (CN) 3436 T
Rory 1029 T
John (ST) 49265 T
Thomas (CA) 17363 T
John-P 134141 T
John-Rev 149591 T
13
24
14
11
11
14
12
12
12
13
13
30
17
9
9
11
11
25
15
19
29
15
15
17
17
Michael 674 T + 1
13
24
14
11
11
14
12
12
(13)
13
13
30
17
9
9
11
11
25
15
19
29
15
15
17
17
Jim (CA) 646 T + 1
13
24
14
11
11
14
12
12
12
13
13
30
17
9
(10)
11
11
25
15
19
29
15
15
17
17
Tom 640 T + 1
13
24
14
11
11
14
12
12
12
13
13
30
17
9
9
11
11
(24)
15
19
29
15
15
17
17
David (CN) 49264 T + 1
& Bob (CN) 85141 T + 1
13
24
14
11
11
14
12
12
12
13
13
30
17
9
9
11
11
25
15
19
(30) 15
15
17
17
Sean-sol 128785 T + 2
13
24
14
11
11
14
12
12
12
13
13
30
17
9
9
11
11
(24)
15
19
(30)
15
15
17
17
Douglas (CN)) 49264 T + 2 13
24
14
11 11
14
12
12
12
13
13
30
17
9
9
11
11
25
15
19
(30)
15
15
[15] 17
Michael (NJ) 85140 T + 2
13
24
14
(10)
11
14
12
12
12
13
13
30
17
9
9
11
11
25
15
19
(30)
15
15
17
17
Larry 26554 T + 2
13
24
14
11
11
14
12
12
12
13
(14)
30
17
9
9
11
11
25
15
19
29
15
15
[15]
17
Gene 9498 T + 3
[10]
24
14
11
11
14
12
12
12
13
13
30
17
9