Hello Amanda. Thanks again for the response.I would be thrilled if you have the name Cornelius in any of your research!I have been searching years for a connection to other Gahagan's.Once again, he emigrated from Ireland by 1860, as his first child (my great-grandmother) was born 1861. She is listed in a later census as having been bornin Iowa (probably Clinton Co, IA according to family stories).The next child was born in Wisconsin three years later. Please contact me should you come up with any leads. Thanks!