| Letter, to Charles T. Riggs, from Henry K. Wingate | Amerikan Bord Heyeti (American Board) | 1911-05-10 |
| Report, Data for Discussion of the financial question, Western Turkey Mission, 1888 | Amerikan Bord Heyeti (American Board) | 1888 |
 | Letter, to Charles T. Riggs, from Arthur C. Ryan | Amerikan Bord Heyeti (American Board) | 1912-07-13 |
| Letter, to Charles T. Riggs, from Mary C. Fowle | Amerikan Bord Heyeti (American Board) | 1911-08-23 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1832-06-19 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1836-05-06 |
 | Letter, to Charles T. Riggs, from James P. McNaughton | Amerikan Bord Heyeti (American Board) | 1913-02-26 |
 | Letter, to Charles T. Riggs, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1913-02-22 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1836-04-25 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1832-04-25 |
