| Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle | Amerikan Bord Heyeti (American Board) | 1936-04-14 |
| Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-03-12 |
 | Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-03-12 |
 | Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-02-10 |
| Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-01-31 |
| Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-03-02 |
| Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-02-14 |
| Letter, to Mabel E. Emerson, Boston (Mass.), from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-02-06 |
 | Letter, to Mabel E. Emerson, Foreign Department, from Luther R. Fowle, Treasurer | Amerikan Bord Heyeti (American Board) | 1936-04-30 |
| Letter, to Members of the Western Turkey Mission, from Harriet G. Powers | Amerikan Bord Heyeti (American Board) | 1880 |
 | Letter, to Mr. Hitchcock, from P. Suhle (?) | Amerikan Bord Heyeti (American Board) | 1883-05-03 |
| Letter, to Pastors and members of Evangelical Churches in Turkey, from Brethren Riggs, Farnsworth, Marden, Barnum and Wood | Amerikan Bord Heyeti (American Board) | - |
| Letter, to Secretary, American Tract Society, from Fred L. Kingsbury and Charles S. Dwight | Amerikan Bord Heyeti (American Board) | 1885 |
| Letter, to the Committee ad Interim, from Edward M. Dodd | Amerikan Bord Heyeti (American Board) | 1855 |
| Letter, to the No. Armenian Missions, from Rufus Anderson, ABCFM | Amerikan Bord Heyeti (American Board) | 1859-01-04 |
| 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) | 1840-12-02 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1832-06-19 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1836-05-06 |
| Letter, to William Goodell, from Henry Hill | Amerikan Bord Heyeti (American Board) | 1836-04-25 |
