| Bulgaria (1945, 1946) | Amerikan Bord Heyeti (American Board) | 1945-02-12; 1946-12-23 |
| Church Manual for the Members of the Presbyterian Church. New Providence, NJ., 1834. | Amerikan Bord Heyeti (American Board) | 1834-01-01 |
| Correspondence of Frederick F. Goodsell, 1938 | Amerikan Bord Heyeti (American Board) | 1938-02-16; 1938-12-27 |
| Correspondence on Pontus Affair | Amerikan Bord Heyeti (American Board) | 1921-04-01; 1928-06-28 |
| Daily register of Elizabeth Riggs, 1857 | Amerikan Bord Heyeti (American Board) | 1857-01-01; 1857-12-20 |
| Daily register of Elizabeth Riggs, 1858 | Amerikan Bord Heyeti (American Board) | 1858-01-01; 1858-12-31 |
| Documents relating to property in Izmir | Amerikan Bord Heyeti (American Board) | 1862-11-10; 1953-11-17 |
| Elias Riggs's sermon notes | Amerikan Bord Heyeti (American Board) | - |
| Elias Riggs's sermon notes | Amerikan Bord Heyeti (American Board) | - |
| Elizabeth Riggs' Journal | Amerikan Bord Heyeti (American Board) | 1848-03-11; 1856-03-10 |
| Elizabeth Riggs' Journal (Smyrna, 1851) | Amerikan Bord Heyeti (American Board) | 1851-03-11; 1852-10-06 |
| Envelope, N.E.R. file, 1920-1921 | Amerikan Bord Heyeti (American Board) | 1920; 1921 |
| Girls' Boarding School. Theological Seminary | Amerikan Bord Heyeti (American Board) | - |
| Istanbul (1944-1946) | Amerikan Bord Heyeti (American Board) | 1944-05-03; 1946 |
| Journal of Emma Riggs | Amerikan Bord Heyeti (American Board) | 1862-11-01; 1863-06-16 |
| Letter to George Washburn | Amerikan Bord Heyeti (American Board) | 1859-03-05 |
| Letter to George Washburn | Amerikan Bord Heyeti (American Board) | 1864-11-05 |
| Letter to George Washburn | Amerikan Bord Heyeti (American Board) | 1859-03-02 |
| Letter to Pettibone | Amerikan Bord Heyeti (American Board) | 1869-08-04 |
| Letter to Rev. E. M. Dodd | Amerikan Bord Heyeti (American Board) | 1864-03-19 |