I've traced Margaret Hannan,to son Patrick Hannan his wife Ellen Corcoran from Ireland to the US somewhere around 1850. Patrick and Ellen's children: Edward J., Margaret, and Mary Hannan were all born in the US. Edward J. Is my G Garndfather, Edward James, my Grandfather, Edward Frank, my father. I'd like to find out about Margaret's husband and the area in Ireland where my family came from.