 | Letter, to Charles T. Riggs, from J.K. Marden, Anatolia Hospital | Amerikan Bord Heyeti (American Board) | 1911-11-22 |
| Letter, to Charles T. Riggs, from James P. McNaughton | Amerikan Bord Heyeti (American Board) | 1911-04-29 |
 | Letter, to Charles T. Riggs, from James P. McNaughton | Amerikan Bord Heyeti (American Board) | 1913-02-26 |
 | Letter, to Charles T. Riggs, from James R. Brewster | Amerikan Bord Heyeti (American Board) | 1913-03-07 |
 | Letter, to Charles T. Riggs, from James R. Brewster | Amerikan Bord Heyeti (American Board) | 1913-05-08 |
 | Letter, to Charles T. Riggs, from Kevork Derijian | Amerikan Bord Heyeti (American Board) | 1911-06-28 |
 | Letter, to Charles T. Riggs, from Lawson P. Chambers | Amerikan Bord Heyeti (American Board) | 1911-05-16 |
 | Letter, to Charles T. Riggs, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1912-01-24 |
 | Letter, to Charles T. Riggs, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1913-02-13 |
 | Letter, to Charles T. Riggs, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1913-05-10 |
 | Letter, to Charles T. Riggs, from Lyndon S. Crawford | Amerikan Bord Heyeti (American Board) | 1913-02-22 |
| Letter, to Charles T. Riggs, from Mary E. Kinney | Amerikan Bord Heyeti (American Board) | 1911-04-12 |
 | Letter, to Charles T. Riggs, from Mrs.R. B. Cherrington | Amerikan Bord Heyeti (American Board) | 1911-08-08 |
| Letter, to Charles T. Riggs, from Ralph S. Harlow | Amerikan Bord Heyeti (American Board) | 1912-07-10 |
 | Letter, to Charles T. Riggs, from S.W. Gentle Cackett | Amerikan Bord Heyeti (American Board) | 1912-04-29 |
| Letter, to Charles T. Riggs, from Stella Loughridge | Amerikan Bord Heyeti (American Board) | 1911-06-26 |
| Letter, to Charles T. Riggs, from Theodore A.Elmer | Amerikan Bord Heyeti (American Board) | 1911-06-30 |
 | Letter, to Charles T. Riggs, from Theodore A.Elmer | Amerikan Bord Heyeti (American Board) | 1911-07-26 |
 | Letter, to Charles T. Riggs, from Theodore A.Elmer | Amerikan Bord Heyeti (American Board) | 1912-02-24 |
 | Letter, to Charles T. Riggs, from William E. Ward | Amerikan Bord Heyeti (American Board) | 1911-05-20 |
