Summary of Mrs. M. S. Ball File, M346, National Archives
Mrs. Mary S. Ball was Assistant Matron, 2nd Division, Chimborazo Hospital
3/30/1863 3/23/1863; Paid $40 for 2 months rent of room for matron at hospital @20. McCaw and Warren sign.
5/28/1863 5/23/1863; Paid $40 for 2 month Room Rent to date. “I certify that this acct was necessary to give suitable lodging to this matron & her daughter also a matron. J. B. McCaw, Surgeon.” Wm. E. Warren signs.