From NPS Soldier and Sailor listing (a good place to start):
J. Aylett - 54th VA Militia
Wm. R. Aylett - 53rd VA Inf, Co. D, Captain (in) - Colonel (out)
Wm. R. Aylett - General and Staff Officer, Non-regimental enlisted ment, CSA, Major (in) - Col. P.A.C.S. (out)