According to the CWS&S there is no George, G, or G.T. Allen serving in the 33rd Mississippi, he is not listed at this website http://www.angelfire.com/ms3/davidg33/index.htm. I did find one possible listed as G.T. Allen in a unit I know nothing about

G. T. Allen (First_Last)
Regiment Name Miss. Conscripts
Side Confederate
Company
Soldier's Rank_In
Soldier's Rank_Out
Alternate Name
Notes
Film Number M232 roll 1

GP