| Letter, to Brethren of the Sivas Station, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1865-01-23 |
| Letter, to the brethren of the Sivas Station, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1864-09-07 |
| Testimonial of Sivas Armenians, reported by Pastor Apraham of Hasskeuy | Amerikan Bord Heyeti (American Board) | 1868 |
| Letter, to Committee ad Interim, from Oliver W. Winchester | Amerikan Bord Heyeti (American Board) | 1864-10-26 |
| Letter, to Tillman C. Trowbridge, from Oliver W. Winchester, on Annual Meeting | Amerikan Bord Heyeti (American Board) | 1864-01-26 |
| Letter, to Tillman C. Trowbridge, from Henry S. West | Amerikan Bord Heyeti (American Board) | 1864-10-03 |
| Letter, to Tillman C. Trowbridge, from Henry S. West, Oliver W. Winchester | Amerikan Bord Heyeti (American Board) | 1865-06-05 |
 | Letter, from Henry S. West | Amerikan Bord Heyeti (American Board) | 1860-05-10 |
| Letter, to the Committee ad Interim, from Oliver W. Winchester | Amerikan Bord Heyeti (American Board) | 1865-02-21 |
| Letter, to Tillman C. Trowbridge, from Oliver W. Winchester | Amerikan Bord Heyeti (American Board) | 1864-08-01 |
