Hi Ginny. . . . me again. I am further along in my research and can say that I have a birth source for my first immigrant ancestor, John Bresnahan. He died in Ft. Wayne, Indiana but his obituary says he was born in Kanturk, County Cork, Ireland.
Also, I have found a sister that immigrated as well. She lived in Ft. Wayne, married a man named Michael Whitty in Marshall County, Indiana and moved there. John's brother Timothy lived in Kosciusko County, Indiana.
I still find it somewhat suspicious that our families used the same naming patterns. Just thought I'd pass this along. . . . keep me in mind as you do your Indiana research.