| Results | ||||
| Note: A ? indicates the information presented is a 'best guess'. The information on the original letter is unknown or illegible and may not be completely accurate. | ||||
| Box: Folder | Letter Date | Written By | Written To | |
| 3:13 | 1941 December 01? | Bertine Powers | Claude Fayette Bragdon | Details |
| 3:14 | 1942 January 13 | Bertine Powers | Claude Fayette Bragdon | Details |
| 4:1 | 1944 January 07 | Bertine Powers | Claude Fayette Bragdon | Details |
| 3:14 | 1952 January 24 | Bertine Powers | Claude Fayette Bragdon | Details |
