I was wondering if he was in F. L. Robertson's Regiment MSG Company A--lists Sgt. Geo P Allen, Saline Co, MO--Captured Milford, MO--Dec 19--Discharged March 15--Roll dated July 1862--Roll of Prisoners of War, Alton, IL per card..

Another card lists "A" Robertson's Regiment MSG--10th company--G. P. Allen 1st SGT appears on lists of prisoners surrendered by F. L. Robertson not dated..Remarks Saline Co, MO..

Hope it helps..
*********************
Gay