| Letter, to R. Anderson from Harrison G.O. Dwight, Daniel Ladd | Amerikan Bord Heyeti (American Board) | 1841-05-25 |
| Letter, to R. Anderson, from E. Riggs and William Goodell | Amerikan Bord Heyeti (American Board) | 1842-04-22 |
| Letter, to the Rufus Anderson, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1857-06-23 |
| Letter, to William W. Peet, from John E. Merrill | Amerikan Bord Heyeti (American Board) | 1907-12-07 |
 | Letter, to R. Anderson from Harrison G.O. Dwight | Amerikan Bord Heyeti (American Board) | 1841-06-01 |
| Letter, to N.G. Clark, from Benjamin Schneider (in 1869 on troubles in Constantinople) | Amerikan Bord Heyeti (American Board) | 1869-02-05 |
| Letter, to the Rufus Anderson, from Henry J. Van Lennep | Amerikan Bord Heyeti (American Board) | 1862-09-05 |
| Letter, to Dr. Anderson on the civil protection of Missionaries | Amerikan Bord Heyeti (American Board) | 1858-07-06 |
| Letter, to the Rufus Anderson, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1862-11-06 |
| Letter, to the Rufus Anderson, from Tillman C. Trowbridge | Amerikan Bord Heyeti (American Board) | 1859-08-24 |
