Hi Neal,
I am assuming that your father was Neal Cadogan and he had a brother Jack and a sister Nancy. If so I might have some more information about your family history. Did your grandparents live on Sunset Rd. in Squantum? If so your grandfather Cornelius Cadogan was my mother's brother and your Dad was my first cousin.
I see that this posting is old. so I do hope you get this. I also hope you had a wonderful time in Ireland and while you were there you were able to visit Ross Castle in Kiillarney National Park. Your great, great grandfather was married to Julia O'Donohue she was a direct descendant of the clan Chief O'Donoghue Ross who built the castle. Funny/strange that your grandfather was also married to a woman named Julie or Julia. Growing up always called her Aunt Julie so Julia may have been her real name. Let met me know if you want more information.
Pauline Mattie Rohrmann
prohrmann@tampabay.rr.com