Jim and I have corresponded and the total picture of Hobart Walker's enlistments is this:
44th NY Infantry - 8/30/61 to 11/16/62
wounded/captured Malvern Hill 7/1/62; paroled to Camp Parole, MD (no date); discharged for disability 11/16/62
12th NY Cavalry - 12/18/62 to 6/23/63
150th OH - 5/2/64 to 8/23/64. Garrisoned Washington DC forts during Jubal Early's raid. Mustered out with the company in Cleveland - possibly Camp Taylor.
106th NY Infantry - 9/27/64 to 3/31/65
Unassigned to company in regiment but detached duty; assigned to Co C, Permanent Party, Hart Island, NY – escorting recruits to their units at the front.
On the SS General Lyon passenger list (NY Times 14 Apr) the recruit escort party is errantly described this way:
"Captain Bullock. 1 officer. 22 recruits"
Jim's evidence clearly shows that Bullock (15 NJ); Lt Simpkins; 2 sergeants; 2 corporals; 18 privates (all Company C and D, Permanent Party) had escorted recruits to Fort Monroe and Wilmington and were returning to NY (via Fort Monroe) on the Lyon. Some of them are named as casualties (Simpkins and Sgt Edwards for example) but others are not.
I've sent to NARA for his 44th NY papers. Jim has shared 106th material which is priceless!