I wonder if you have a John McGee in your line in Jefferson Co MO. He married Eliza Brady, daughter of Bartholomew and Ann Smith Brady, in 1859 in that Co. His parents were listed as Conrad McGee and Rosa Brady. 1860 finds the Brady's in Jefferson Co. MO. In 1870 John and Eliza lived in Dunleith, JoDavies Co. IL. All were from Caven Ireland about 1848.