| Letter, to Charles T. Riggs, from Henry K. Wingate | Amerikan Bord Heyeti (American Board) | 1912-10-11 |
| Letter, to Charles T. Riggs, from Henry K. Wingate | Amerikan Bord Heyeti (American Board) | 1911-05-10 |
| Letter, to Charles T. Riggs, from James P. McNaughton | Amerikan Bord Heyeti (American Board) | 1911-04-29 |
 | Letter, to Charles T. Riggs, from James P. McNaughton | Amerikan Bord Heyeti (American Board) | 1913-02-26 |
 | Letter, to Charles T. Riggs, from Kate G. Lamson | Amerikan Bord Heyeti (American Board) | 1911-09-05 |
 | Letter, to Charles T. Riggs, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1913-02-22 |
| Letter, to Charles T. Riggs, from Mary C. Fowle | Amerikan Bord Heyeti (American Board) | 1911-08-23 |
| Letter, to Charles T. Riggs, from Ralph S. Harlow | Amerikan Bord Heyeti (American Board) | 1912-07-10 |
| Letter, to Joseph K. Greene, from Laura Farnham | Amerikan Bord Heyeti (American Board) | 1910-05-07 |
 | Letter, to Joseph K. Greene, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1910-05-28 |
| Letter, to Mabel E. Emerson, Boston (Mass.) | Amerikan Bord Heyeti (American Board) | 1936-04-10 |
| Letter, to Miss Gage regarding the YWCA, from the Annual Meeting | Amerikan Bord Heyeti (American Board) | 1913-07-09 |
| Letter, to the Committee ad Interim, from Edward M. Dodd | Amerikan Bord Heyeti (American Board) | 1855 |
| Letter, to Tillman C. Trowbridge, from Edward M. Dodd | Amerikan Bord Heyeti (American Board) | 1859-01-31 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1839-10-12 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1835-06-06 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1834-08-02 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1831-12-16 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1832-02-15 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1834-09-27 |
