"There is a George Washington Hubbard born 1841/42 from Simpson County, who moved to Texas where he died well after the war. Could be that George W. Hubbard joined an out of county unit."
This George Hubbard told Federal authorities his residence was Simpson County and it looked liked Mississippi and he was with Adam's Cavalry.
He surely is on my list of candidates. Hoping to find some pension records and other information at the MDAH this week for some of these names.