| Letter, to Theodore A. Baldwin, from Giles F. Montgomery | Amerikan Bord Heyeti (American Board) | 1877-12-05 |
| Letter, to Theodore A. Baldwin, from Charles C. Stearns | Amerikan Bord Heyeti (American Board) | 1877-11-27 |
| Letter, to Theodore A. Baldwin, from Henry Jones | Amerikan Bord Heyeti (American Board) | 1877-10-31 |
 | Letter, to Theodore A. Baldwin, from Green & Whineray | Amerikan Bord Heyeti (American Board) | 1877-11-06 |
| Letter, to Theodore A. Baldwin, from Edward Riggs | Amerikan Bord Heyeti (American Board) | 1877-12-29 |
 | Letter, to Theodore A. Baldwin, from Myra Proctor | Amerikan Bord Heyeti (American Board) | 1877-12-14 |
| Letter, to Theodore A. Baldwin | Amerikan Bord Heyeti (American Board) | 1878-01-11 |
| Minutes, Elbert C. Stevens, Elizabeth L. Lewis, Charles T. Riggs, Meeting minutes, Christian Workers' Union | Amerikan Bord Heyeti (American Board) | 1920; 1924 |
| Letter, B. Eddy, William W. Peet, Account of Balkan war and relief needs correspondence, note, news report | Amerikan Bord Heyeti (American Board) | 1913 |
| Letter, Charles C. Tracy, William W. Peet, correspondence about land and building matters | Amerikan Bord Heyeti (American Board) | 1908-01 |
