I have quite a bit of info on my great grandfather Patrick Breen (no middle name noted) born February 20, 1839 in County Kerry. His mother's name was Margaret, father's first name unknown. He apparently followed his parents to New York in 1850 at age 11. He enlisted in the U.S. Army (the "regulars" during the Civil War)in 1855 in New York and had a 22 year career with the U.S. Army during which he saw service in many of the major campaigns. Following his military career he worked in Vincennes, Indiana for the B&O RR and/or subsidiary. I have info on his several children but not much on most of his children's children. Nor do I have much on his parents.
Any help in filling in the gaps will be much appreciated.