Hd. [illegible] 1st Del. Cav.
"Camp Carroll"
Baltimore Md.
July 18th 1864

Sir
I have the honor to report that I am on duty at this post with my regiment also asst. surgeon R. B. Mc.Kee 1st Del. Cav.

Very respectfully
you obdt svt
J. Hayes Shields
Surgr 1st Del Cv

To Surgn J. Simpson U.S.A.
Med. Director 8th a.c. &c &c

Red Ink [written diagonally over the above address]