My gg grandfather, John Madigan, came from Ireland with his brother around 1830, when he was about the age of 13. The brother stayed in Maine, John settled in Wisconsin, married Elizabeth Mulvaney, and had 8 children, including my g grandfather, Michael, in 1850.
Elizabeth died young, around 1863, and John married again, to Ellen or Ella ? and had 8 more children, so it looks like I could be related to just about any Madigan from Wisconsin...
(children's names include David, Ellen, Mary, Ann, Agnes, Francis, Varonica, John, Stephen, Patrick (Henry), Martha, Anna, Arthur, Edwin/Edward, and Paul)
Please contact me if you should see any connection - I would love to find out more about the family!