Looking for assistance in finding out what happened to him. Born in Odessa in 1826. Immigrated to US in 1849. Enlisted in the 1st NY Infantry on Apr 22, 1861. NY Adj Gen report says he mustered out w/ regiment in May 1863. I have all his records from NARA. The Company Muster Roll Apr 1863 says "Roll aft 3 of 63 not on file" which I read as March of 1863. My experience shows that units mustered men out even if their whereabout were unknown. Family history says he may have been captured. Name doesnt appear on any POW rolls that I have access to. His father's will executed in 1867 omits him. No other siblings omitted. 1st NY particpated in Fredericksburg Dec 1862, the Mud March Jan 1863, and later Chancellorsville in May 1863.No pension applications. Any suggestions on where else I might look?