From the National Archives, RG 109, Ch. 6, Vol. 364, "Letters Sent & Received, Medical Director's Office, 1864-65." p. 103
Medical Director's Office, June 1st '64
You will transfer all convalescents and slightly wounded at once to the tents sent you, and place other wounded or more seriously sick in the beds vacated thereby.
If the tents cannot contain them all let them bivouac around them – the army is now in the immediate vicinity and Gen. Lee directs that all slightly sick and wounded be at once directed examined and all those who can bear arms returned to their commands.
A commission from his army is about visiting the Hos. under your charge to return all improperly absent. Your prompt action is requested.
Wm. A. Carrington
Surgns in chg the 4 Large Hospls [Chimborazo, Winder, Jackson, and Howard's Grove]