| Letter, to Charles T. Riggs, from Henry K. Wingate | Amerikan Bord Heyeti (American Board) | 1911-03-20 |
 | Letter, to Charles T. Riggs, from Charles K. Tracy | Amerikan Bord Heyeti (American Board) | 1911-02-14 |
| Letter, to Charles T. Riggs, from Mary E. Kinney | Amerikan Bord Heyeti (American Board) | 1913-03-01 |
| Letter, to Charles T. Riggs, from Herbert M. Irwin | Amerikan Bord Heyeti (American Board) | 1913-04-21 |
| [Letter, to Kroyar Pijar] | Amerikan Bord Heyeti (American Board) | 1912-09-16 |
| [Letter, to Kroyar Pijar] | Amerikan Bord Heyeti (American Board) | 1912-09-24 |
| Letter, to Joseph K. Greene, from the Armenian Girls' High School in Adabazar | Amerikan Bord Heyeti (American Board) | 1910-02-01 |
 | Letter, to C. T. Riggs, from Azad J. Azarian, about renovating the church, schools, and presbyterium in Nicomedia | Amerikan Bord Heyeti (American Board) | 1910-09-23 |
| Letter, to Joseph K. Greene, from Laura Farnham | Amerikan Bord Heyeti (American Board) | 1910-02-08 |
| Letter, to Joseph K. Greene, from Laura Farnham | Amerikan Bord Heyeti (American Board) | 1910-02-12 |
