| Letter, to the general meeting, Armenian Mission, by Andrew T. Pratt | Amerikan Bord Heyeti (American Board) | 1853-04-09 |
| Letter, to Theodore A. Baldwin, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1878-02-07 |
| Letter, to Theodore A. Baldwin, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1877-09-10 |
| Letter, to Theodore A. Baldwin, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1877-08-29 |
 | Letter, to Ira F. Pettibone, from Americus Fuller | Amerikan Bord Heyeti (American Board) | 1880-06-05 |
| Letter, to Tillman C. Trowbridge, from Jackson G. Coffing | Amerikan Bord Heyeti (American Board) | 1858-03-18 |
| Letter, to Tillman C. Trowbridge, from Jackson G. Coffing | Amerikan Bord Heyeti (American Board) | 1858-05-06 |
| Letter, to Theodore A. Baldwin, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1878-02-20 |
 | Letter, to Theodore A. Baldwin, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1878-07-02 |
 | Letter, to Theodore A. Baldwin, from Americus Fuller | Amerikan Bord Heyeti (American Board) | 1878-05-02 |
