From the National Archives, RG 109, Ch. 6, Vol. 364, "Letters Sent & Received, Medical Director's Office, 1864-65." p. 68
Medical Director's Office, May 3/64
Sir: I respectfully request your consolidation of the Small Pox & Howard's Grove Hospls. They are entirely too near to expect an entirely harmonious administration. Surg. Palmer is in charge of both Hospls at this time. I propose to style the Small Pox Hospl the 3rd or Small Pox Division of the Hospl & place it in charge of an officer to report to Surg. Palmer. This assignment I think will promote efficiency & economy.
Very Res. &c
Wm. A. Carrington