Our earliest ancestor was Mary Brigid "Brigid" Byrne who was b. 9/12/1833 (give or take a year or two either way) believed to be in Co Roscommon. We do not know town, town land, Catholic or Civil Parishes. Brigid married John Cassidy 1854/1857. John was from Co Roscommon b. 12/2/1832-34 (not positive it was in Roscommon, but we know he did reside there from his grave monument.
They married 1854/1857, again not sure, either in IRL or CT, USA. Census data says Brigid would have emigrated in 1856 and John in 1854. Which means were not sure they were married before they came to USA or were married in IRL or whether errs were made in dates of emigration. Anna the oldest of the known children was born in CT in 1858. They had eight other children, but we know of only two others; Thomas and Michael both born in IL. Their trail is IRL>CT, USA, LaSalle Co, IL>Livingston Co., IL. Brigid and John both died in the early 1900's. We have information that supports that John Cassidy's parents were Francis "Frank" Cassidy and Brigid Flanagan and that "Frank" had two brothers, Barney and Thomas.
Roger R. Cahill firstname.lastname@example.org