The name of the O'Finigan in this post was Miles, not Mike, on most documents. Other brother's names might possibly be: Owen, Arthur, James or Jim, Mike or Michael, Patrick, Peter, and Frank. All brothers dropped the "O" after coming to America during the Irish Potato Famine.
One brother was to go to California, one "up north", one around St. Louis, one to Texas, one supposedly hanged.
If you are a descendant of any of these, please contact me. I have much family history to share.