Addressees: Osgood, James R
- Samuel L. Clemens to James R. Osgood, 31 March 1872 · Elmira, N.Y · UCCL00739 NjP
- Samuel L. Clemens to James R. Osgood, 15 September 1872 · London, England · UCCL00937
- SLC to James R. Osgood, 4 May 1874 · Elmira, N.Y · UCCL10388
- Samuel L. Clemens to James R. Osgood, 13 January 1875 · Hartford, Conn · UCCL01179 MH-H
- Samuel L. Clemens to James R. Osgood, 12 February 1875 · Hartford, Conn · UCCL01193 MH-H
- Samuel L. Clemens to James R. Osgood, 20 February 1875 · Hartford, Conn · UCCL11540 CLjC
- Samuel L. Clemens to James R. Osgood, 13 July 1875 · Hartford, Conn · UCCL01249 MH-H
- Samuel L. Clemens to James R. Osgood, 20 July 1875 · Hartford, Conn · UCCL01251 CtY-BR
- Samuel L. Clemens to James R. Osgood, 23 July 1875 · Hartford, Conn · UCCL01254 MH-H, CU-MARK
- Samuel L. Clemens to James R. Osgood, 16 August 1875 · Newport, R.I · UCCL01257 MH-H
- Samuel L. Clemens to James R. Osgood, 17 January 1876 · Hartford, Conn · UCCL01298 MH-H
- Samuel L. Clemens to James R. Osgood, 25 January 1876 · Hartford, Conn · UCCL01302 MH-H
- Samuel L. Clemens to James R. Osgood, 19 October 1880 · Hartford, Conn · UCCL10668 Axelrod
- Samuel L. Clemens to James R. Osgood, 17 November 1880 · Hartford, Conn · UCCL01854
- Samuel L. Clemens to James Osgood, 26 November 1880 · Hartford, Conn · UCCL01856 MH-H
- Samuel L. Clemens to James R. Osgood, 13 December 1880 · Hartford, Conn · UCCL01871 ODa2
- Samuel L. Clemens to James R. Osgood, 16 December 1880 · Hartford, Conn · UCCL01873 Axelrod
- Samuel L. Clemens to James R. Osgood, 27 December 1880 · Hartford, Conn · UCCL12250
- SLC to James R. Osgood, 5 January 1881 · Hartford, Conn · UCCL13129
- SLC to James R. Osgood, 21 January 1881 · Hartford, Conn · UCCL01894
- SLC to James R. Osgood, 23 January 1881 · Hartford, Conn · UCCL01895 MH-H
- SLC to James R. Osgood, 1 February 1881 · Hartford, Conn · UCCL01901 CAlb2
- SLC to James R. Osgood, 6 February 1881 · Hartford, Conn · UCCL11962
- SLC to James R. Osgood, 12 February 1881 · Hartford, Conn · UCCL01907 MH-H
- SLC to James R. Osgood, 7 March 1881 · Hartford, Conn · UCCL01924 MH-H
- SLC to James R. Osgood, 9–10 March 1881 · Hartford, Conn · UCCL08970 MH-H
- SLC to James R. Osgood, 26 March 1881 · Hartford, Conn · UCCL01931 MH-H
- SLC to James R. Osgood, 30 March 1881 · Hartford, Conn · UCCL02551 NN-BGC
- SLC to James R. Osgood, 4 April 1881 · Hartford, Conn · UCCL13719
- SLC to James R. Osgood, 7 May 1881 · Hartford, Conn · UCCL01949 CCC
- SLC to James R. Osgood, 12 May 1881 · Hartford, Conn · UCCL09209 CU-MARK
- SLC to James R. Osgood, 16 May 1881 · Hartford, Conn · UCCL10435
- SLC to James R. Osgood, 21 May 1881, Hartford, Conn · UCCL14010
- SLC to James R. Osgood, 30 May 1881 · Hartford, Conn · UCCL01961 CU-MARK
- SLC to James R. Osgood, 3 June 1881 · Hartford, Conn · UCCL01968 IU-R
- Samuel L. Clemens to James R. Osgood, 13 June 1881 · Hartford, Conn · UCCL12944 In
- SLC to James R. Osgood, 22 August 1881 · Elmira, N.Y · UCCL02011 MH-H
- SLC to James R. Osgood, 23 August 1881 · Elmira, N.Y · UCCL02013
- SLC to James R. Osgood, 2 October 1881 · Hartford, Conn · UCCL02041 ViU
- SLC to James R. Osgood, 4 October 1881 · Hartford, Conn · UCCL13536
- SLC to James R. Osgood, 19 October 1881 · Hartford, Conn · UCCL02056 TxU-Hu
- SLC to James R. Osgood, 21 October 1881 · Hartford, Conn · UCCL02058 CtY-BR
- SLC to James R. Osgood, 24 October 1881 · Hartford, Conn · UCCL02061 Axelrod
- SLC to James R. Osgood, 24 October 1881 · Hartford, Conn · UCCL02060 CU-MARK
- SLC to James R. Osgood, 25 October 1881 · Hartford, Conn · UCCL02064 CU-MARK
- SLC to James R. Osgood, 27 October 1881 · Hartford, Conn · UCCL09947 MoHM
- SLC to James R. Osgood, 27 October 1881 · Hartford, Conn · UCCL02074 CU-MARK
- SLC to James R. Osgood, 28 October 1881 · Hartford, Conn · UCCL02555 NN-BGC
- SLC to James R. Osgood, 31 October 1881 · Hartford, Conn · UCCL02078 PU
- SLC to James R. Osgood, 1 November 1881 · Hartford, Conn · UCCL02079 MH-H
- SLC to James R. Osgood, 2 November 1881 · Hartford, Conn · UCCL11171 CU-MARK
- SLC to James R. Osgood, 7 November 1881 · Hartford, Conn · UCCL09346 CU-MARK
- SLC to James R. Osgood, 28 November 1881 · Montreal, Canada · UCCL02104 MH-H
- SLC to James R. Osgood, 8 December 1881 · Montreal, Canada · UCCL02112 MoSW
- SLC to James R. Osgood, 12 December 1881 · Hartford, Conn · UCCL02116 NhD
- SLC to James R. Osgood, 29 December 1881 · Hartford, Conn · UCCL02559 NN-BGC
- SLC to James R. Osgood, 31 December 1881 · Hartford, Conn · UCCL02130 MH-H
- SLC to James R. Osgood, 4 January 1882 · Hartford, Conn · UCCL02142 ViU
- SLC to James R. Osgood, 7 January 1882 · Hartford, Conn · UCCL02145 MH-H
- SLC to James R. Osgood, 25 January 1882 · Hartford, Conn · UCCL02154 CU-MARK
- SLC to James R. Osgood, 12 February 1882 · Hartford, Conn · UCCL02159 MH-H
- SLC to James R. Osgood, 1 March 1882 · Hartford, Conn · UCCL10437 CU-MARK
- SLC to James R. Osgood, 4 March 1882 · Hartford, Conn · UCCL02561 NN-BGC
- SLC to James R. Osgood, 23 March 1882 · Hartford, Conn · UCCL02183 MH-H
- SLC to James R. Osgood, 25 March 1882 · Hartford, Conn · UCCL09117 FG2
- SLC to James R. Osgood, 7 April 1882 · Hartford, Conn · UCCL02197 MH-H
- SLC to James R. Osgood, 14 April 1882 · Hartford, Conn · UCCL02135 ViU
- SLC to James R. Osgood, 17 April 1882 · Hartford, Conn · UCCL01541 CU-MARK
- SLC to James R. Osgood, May? 1882 · Unknown place · UCCL13314
- SLC to James R. Osgood, 3 June 1882 · Hartford, Conn · UCCL02562 NN-BGC
- SLC to James R. Osgood, 11 June 1882 · Hartford, Conn · UCCL08975 Axelrod
- SLC to James R. Osgood, 19 July 1882 · Elmira, N.Y · UCCL02238 CtY-BR
- SLC to James R. Osgood, 31 July 1882 · Elmira, N.Y · UCCL12448 CU-MARK
- SLC to James R. Osgood, 18 September 1882 · Elmira, N.Y · UCCL02269 CU-MARK
- SLC to James R. Osgood, 27 September 1882 · Elmira, N.Y · UCCL09749
- SLC to James R. Osgood, 18 October 1882 · Hartford, Conn · UCCL02292 ViU
- SLC to James R. Osgood, 23 October 1882 · Hartford, Conn · UCCL12951 CU-MARK
- SLC to James R. Osgood, 5 January 1883 · Hartford, Conn · UCCL02320 NNPM
- SLC to James R. Osgood, 15 January 1883 · Hartford, Conn · UCCL02334 CtY-BR
- SLC to James R. Osgood, 21 January 1883 · Hartford, Conn · UCCL01632 GMar2
- SLC to James R. Osgood, 2 February 1883 · Hartford, Conn · UCCL09748
- SLC to James R. Osgood, 7 March–14 March 1883 · Hartford, Conn · UCCL08820 NN
- SLC to James R. Osgood, 13 March 1883 · Hartford, Conn · UCCL08973 NjP
- SLC to James R. Osgood, 6 April 1883 · Hartford, Conn · UCCL02803 CLjC
- SLC to James R. Osgood, 17 April 1883 · Hartford, Conn · UCCL02372 MH-H
- SLC to James R. Osgood, 1 September 1883 · Elmira, N.Y · UCCL04139 WEU
- SLC to James R. Osgood, 13 September–14 September 1883 · New York, N.Y · UCCL10905 NPV
- SLC to James R. Osgood, 21 December 1883 · Hartford, Conn · UCCL02872 MH-H
- SLC to James R. Osgood, 17 January 1884 · Hartford, Conn · UCCL02890 MH-H
- SLC to James R. Osgood, 3–4 February 1884 · Hartford, Conn · UCCL12892 NPV
- SLC to James R. Osgood, 20 March 1884 · Hartford, Conn · UCCL02937 MH-H
- SLC to James R. Osgood, 24 May 1884 · Hartford, Conn · UCCL02985 NjP
- SLC to James R. Osgood, 27 May 1884 · Hartford, Conn · UCCL12837 CU-MARK
- SLC to James R. Osgood, 5 May 1885 · Hartford, Conn · UCCL10070
- SLC to James R. Osgood, 20 March 1890 · Hartford, Conn · UCCL04030 MH-H
- SLC to James R. Osgood, 18 December 1906 · Unknown place · UCCL09509
- SLC to James R. Osgood, 28 May n.y. · Hartford, Conn · UCCL09867 NN14
- SLC to James R. Osgood, Unknown date · Unknown place · UCCL09878
1