Addressees: Hartford Courant Editor
- Samuel L. Clemens to The Editor of the Hartford Courant, 30 March 1873 · Hartford, Conn · UCCL00893
- Samuel L. Clemens to the Editor of the Hartford Courant, 13 April 1874 · Hartford, Conn · UCCL01077
- SLC to Hartford Courant editor, 21 June 1875 · Hartford, Conn · UCCL13001
- Samuel L. Clemens to Editor of the Hartford Courant, 27? September 1875 · Hartford, Conn · UCCL01265
- Samuel L. Clemens to the Editor of the Hartford Courant, 22? October 1875 · Hartford, Conn · UCCL01272
- Samuel L. Clemens to the Editor of the Hartford Courant, 19 September 1877 · Hartford, Conn · UCCL01481
- Samuel L. Clemens to the Editor of the Hartford Courant, 2 February 1879 · Munich, Germany · UCCL09111
- Samuel L. Clemens to the Editor of the Hartford Courant, 22 November 1879 · Hartford, Conn · UCCL01725
- Samuel L. Clemens to the Editor of the Hartford Courant, 8 December 1879 · Hartford, Conn · UCCL02808
- Samuel L. Clemens to the Editor of the Hartford Courant and Thomas B. Kirby, Private Secretary to the Postmaster General, 8 December 1879 · Hartford, Conn · UCCL02807
- Samuel L. Clemens to the Editor of the Hartford Courant, 20–24 September 1880 · Elmira, N.Y · UCCL01748
- SLC to Hartford Courant editor, 28 March 1883 · Hartford, Conn · UCCL13005
- SLC to Hartford Courant editor, 18 July 1884 · Elmira, N.Y · UCCL01540
- SLC to Hartford Courant editor, 6–7 June 1886 · Hartford, Conn · UCCL03407
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