I know this is a long shot, but I have hope. My great great grandfather enlisted for the Mexican American War in Alton, Ill. "COLE, JILES M PVT B 2 IL INF ALTON
Enlisted June 30, 1846 at Alton, Illinois and was mustered into service as a private in Company "B" 2nd Regiment Illionois Voleenteres, Served in Mexican American War. Discharged June 18, 1847 at Camargo, Mexico."
His name was actually Giles M. Cole b. 25 Dec 1825 in Alabama. I have no idea who his parents were, but have all the names of his siblings. He married Martha Jane Morgan in Alexander County, Ill on 08 Jan 1848. A few years later they moved from Alexander Co to Missouri.
Help if you can,
Barbara Cole Adams