George H. Packwood, b.c1844 probably in NYC, NY, enlisted 20 Dec 1864 (age 20). Promoted Full Lieutenant 2nd Class effective 31 Jan 1865, commission in Company D, 20th Infantry Regiment, Mass (note: his civilian residence is listed as NYC, NY - not Mass). Promoted Full Lieutenant 1st Class effective 22 June 1865. Mustered out 28 July 1865.

Also - George Horatio Packwood's 2nd? cousin, George Hinman Packwood, b.1833 in Louisiana, was a Capt in the Confederate Army