My great grandfather's name was James Cogan/Cogans. I am not sure where he emigrated to, but was in Detroit, Michigan by 1900. He married Elizabeth Sheehan about 1887. She was born 1859 in Brant, Ontario, Canada. I do not know if they married in Canada or Michigan. I believe James's father was Patrick Coogan, son of Michael Coogan and Hannah Foley. His mother was Hannah Ahern, daughter of Denis Ahern and Margaret Murphy. Again, any help with this family would be much appreciated.