| 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. | |||
| Letter Number | Letter Date | Written By | Written To |
| 362 | 1864 January 22 | Roswell S. Burrows | Hiram Sibley |
| 363 | 1871 January 25 | Roswell S. Burrows | Hiram Sibley |
| 364 | 1863 February 17 | Roswell S. Burrows | Hiram Sibley |
| 365 | 1864 February 17 | Roswell S. Burrows | Hiram Sibley |
| 366 | 1860 February 21 | Roswell S. Burrows | Hiram Sibley |
| 367 | 1863 February 23 | Roswell S. Burrows | Hiram Sibley |
| 368 | 1858 March 26 | Roswell S. Burrows | Hiram Sibley |
| 369 | 1858 April 02 | Roswell S. Burrows | Hiram Sibley |
| 370 | 1862 April 04 | Roswell S. Burrows | Hiram Sibley |
| 371 | 1858 April 05 | Roswell S. Burrows | Hiram Sibley |
| 372 | 1858 April 10 | Roswell S. Burrows | Hiram Sibley |
| 373 | 1862 April 11 | Roswell S. Burrows | Hiram Sibley |
| 374 | 1847 May 14 | Roswell S. Burrows | Hiram Sibley |
| 375 | 1862 June 21 | Roswell S. Burrows | Hiram Sibley |
| 376 | 1862 June 23 | Roswell S. Burrows | Isaac Russell Elwood |
| 377 | 1858 September 30 | Roswell S. Burrows | Hiram Sibley |
| 378 | 1858 November 04 | Roswell S. Burrows | Hiram Sibley |
| 379 | 1858 November 05 | Roswell S. Burrows | Hiram Sibley |
| 380 | 1858 November 20 | Roswell S. Burrows | Hiram Sibley |
| 381 | 1858 November 22 | Roswell S. Burrows | Hiram Sibley |
| 382 | 1862 December 09 | Roswell S. Burrows | Hiram Sibley |
| 383 | 1862 December 12 | Roswell S. Burrows | Hiram Sibley |
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