| Letter, to Henry O. Dwight, from Oscar S. Straus, United States Legation | Amerikan Bord Heyeti (American Board) | 1899-04-10 |
| Letter, to Henry O. Dwight, from Oscar S. Straus, United States Legation | Amerikan Bord Heyeti (American Board) | 1898-11-08 |
 | Letter, to Henry O. Dwight and Elias Riggs, from Alexander Watkins Terrell | Amerikan Bord Heyeti (American Board) | 1895-02-08 |
| Letter, to Henry O. Dwight, from Alexander Watkins Terrell | Amerikan Bord Heyeti (American Board) | 1896-07-11 |
 | Letter, from United States Legation, Constantinople | Amerikan Bord Heyeti (American Board) | 1896-01-01 |
| Letter, to Mr. Hilprecht | Amerikan Bord Heyeti (American Board) | 1898-07-07 |
| Letter, to Henry Jones (Secretary, Turkish Mission Aid Society), from Henry Venn (Secretary, Church Mission Society) | Amerikan Bord Heyeti (American Board) | 1865-02-25 |
| Letter, to members of Rodosto Church, from F.H. Baldwin, George F. Herrick, Henry A. Schauffler | Amerikan Bord Heyeti (American Board) | 1869-03-25 |
| Letter, to Rodosto Church, from George F. Herrick, Theodore A. Baldwin, William G. Schauffler | Amerikan Bord Heyeti (American Board) | 1869-04-26 |
| Letter, to Elias Riggs and Constantinople Station, from S. M. Minasian | Amerikan Bord Heyeti (American Board) | 1869-03-19 |
