| Letter to R.A. Baldwin, from Orson P. Allen | Amerikan Bord Heyeti (American Board) | 1876-07-05 |
| Letter, Baron Kevork Rodosto, application for aid | Amerikan Bord Heyeti (American Board) | 1869-10-11 |
| Letter, Baron Hagop of Adrianople, wages, etc. | Amerikan Bord Heyeti (American Board) | 1869-10-08 |
| Letter from Hagop Agha, Adrianople | Amerikan Bord Heyeti (American Board) | 1869-09 |
| Letter, Baron Hagop, Adrianople | Amerikan Bord Heyeti (American Board) | 1869-06-19 |
| Letter from Pastor Simon | Amerikan Bord Heyeti (American Board) | 1869-05-03 |
| Document, the understanding between the Langa congregation and the missionaries of the American Board as regards the use of the chapel building in Langa | Amerikan Bord Heyeti (American Board) | 1871-02-06; 1871-02-18 |
| Letter from Simon Eutujian, declining proposed meeting to discuss the term of commission | Amerikan Bord Heyeti (American Board) | 1861-04-24 |
| Letter, Baron Kevork, Rodosto, application for aid | Amerikan Bord Heyeti (American Board) | 1869-12-18 |
| Letter, B. Hachadoor for ch.session, on ownership of Y. K. Chapel | Amerikan Bord Heyeti (American Board) | 1861-03-20 |
