| Engineer Bureau |
| March 15, 1864 |
| |
| Capt. Abner S. Gaines, Corps of Engrs P. A. C. S. |
| Army of Tenn |
| |
| Captain, |
| I take pleasure in transmitting herewith
your appointment to the grade of Captain in the Provisional Corps of
Engineers, to rank as such from 22 January 1864. |
| Yours Very Respy |
| A. L. Rives |
| Lt Col &c &c |
| |
| Through |
| Brig Genl D. Leadbetter |
| Chf Eng A of Tenn |
| Hd Qrs Genl J. E. Johnston Comdg &c |
|