| Letter, to Tillman C. Trowbridge, from Wilson A. Farnsworth | Amerikan Bord Heyeti (American Board) | 1858-03-16 |
| Letter, to the Yozgat Station (on location of Mr. Van Lennep) | Amerikan Bord Heyeti (American Board) | 1858-07-26 |
| Letter, to Tillman C. Trowbridge, from Fayette Jewett | Amerikan Bord Heyeti (American Board) | 1858-03-22 |
| Letter, to Tillman C. Trowbridge, from Benjamin Parsons | Amerikan Bord Heyeti (American Board) | 1858-03-16 |
| Letter, to Tillman C. Trowbridge, from Fayette Jewett | Amerikan Bord Heyeti (American Board) | 1858-02-02 |
| Letter, to Tillman C. Trowbridge, from Fayette Jewett | Amerikan Bord Heyeti (American Board) | 1858-03-02 |
| Postcard, to Charles T. Riggs, from James L. Fowle | Amerikan Bord Heyeti (American Board) | 1912-05-13 |
| Letter, to Charles T. Riggs, from George F. Herrick | Amerikan Bord Heyeti (American Board) | 1913-04-14 |
| Letter, to Charles T. Riggs, from Charles Tracy | Amerikan Bord Heyeti (American Board) | 1912-09-01 |
| Letter, to Theodore A. Baldwin, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1877-09-10 |
