Addressees: Seaver, William A
- Samuel L. Clemens to William A. Seaver, 1 May 1874 · Elmira, N.Y · UCCL01081 WU-MU
- Samuel L. Clemens to William A. Seaver, 20 May 1874 · Elmira, N.Y · UCCL01090 WU-MU
- Samuel L. Clemens to William A. Seaver, 2 or 3 July 1874 · Hartford, Conn · UCCL10803 NN-BGC
- Samuel L. Clemens to William A. Seaver, 25 September 1874 · Hartford, Conn · UCCL01100 WU-MU
- Samuel L. Clemens to William A. Seaver, 26 February 1875 · Hartford, Conn · UCCL01198 WU-MU
- Samuel L. Clemens to William A. Seaver, 6 March 1875 · Hartford, Conn · UCCL01204 WU-MU
- Samuel L. Clemens to William A. Seaver, 10 November 1875 · Hartford, Conn · UCCL07707 WU-MU
- Samuel L. Clemens to William A. Seaver, 5 December 1875 2nd of 2 · Hartford, Conn · UCCL01286 WU-MU
- Samuel L. Clemens to William A. Seaver, 5 December 1875 · 1st of 2 · Hartford, Conn · UCCL09687
- Samuel L. Clemens to William A. Seaver, 16 September 1876 · Hartford, Conn · UCCL01365 WU-MU
- Samuel L. Clemens to William A. Seaver, 4 October 1876 · Hartford, Conn · UCCL01372
- Samuel L. Clemens to William A. Seaver, 28 June 1878 · Heidelberg, Germany · UCCL01574 CLjC
- Samuel L. Clemens to William A. Seaver, 29 December 1880 · Hartford, Conn · UCCL01885 CU-MARK
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