Addressees: Unidentified
- SLC to Unidentified, 9 May 1867 · New York, N.Y · UCCL10643
- SLC to Unidentified, 29 May 1867 · New York, N.Y · UCCL09996
- SLC to Unidentified, 25 December 1868 · Lansing, Mich · UCCL09449
- SLC to Unidentified, 27 September 1869 · Buffalo, N.Y · UCCL12104
- Samuel L. Clemens to Unidentified, 7 October 1869 · Elmira, N. Y · UCCL00361
- Samuel L. Clemens to Unidentified, 16 March 1870 · Buffalo, N.Y · UCCL09756
- Samuel L. Clemens to Unidentified, 28 May 1870 · Buffalo, N.Y · UCCL00471
- Samuel L. Clemens to Unidentified, 4 July 1870 · Elmira, N.Y · UCCL02799
- SLC to Unidentified, November 1870 · Buffalo, N.Y · UCCL12486
- Samuel L. Clemens to Unidentified, 6 January 1871 · Buffalo, N.Y · UCCL11886
- Samuel L. Clemens to Unidentified, 13 February 1871 · Buffalo, N.Y · UCCL00574
- SLC to Unidentified, 14 February 1871 · Buffalo, N.Y · UCCL13009
- Samuel L. Clemens to Unidentified, 18 April 1871 · Elmira, N.Y · UCCL11014
- SLC to Unidentified, 14 September ?1871 · Elmira, N.Y · UCCL12094
- SLC to Unidentified, 16 October 1871–27 February 1872 · Hartford, Conn · UCCL12467
- Samuel L. Clemens to Unidentified, 20 November 1871 · Hartford, Conn · UCCL09850
- SLC to Unidentified, 19 December 1871 · Chicago, Ill · UCCL12656
- Samuel L. Clemens to Unidentified, 16 March–28 May 1872 · Elmira, N.Y · UCCL08200
- Samuel L. Clemens to Unidentified, 19 March–8 May 1872 · Elmira, N.Y · UCCL09046
- Samuel L. Clemens to Unidentified, 18 October 1872 · London, England · UCCL11320
- Samuel L. Clemens to Unidentified, 7 April 1873 · Hartford, Conn · UCCL00897
- Samuel L. Clemens to Unidentified · UCCL10821
- Samuel L. Clemens to Unidentified · UCCL00895
- Samuel L. Clemens to Unidentified, 25 April? 1873 · Hartford, Conn · UCCL09691
- Samuel L. Clemens to Unidentified per Samuel C. Thompson, 11 July 1873 · London, England · UCCL00950
- Samuel L. Clemens to Unidentified, 31 July 1873 · Edinburgh, Scotland · UCCL00958
- Samuel L. Clemens to Unidentified, 11 October 1873 · London, England · UCCL00971
- Samuel L. Clemens to Unidentified, 22 October 1873 · SS Batavia at Queenstown, Ireland · UCCL00977
- Samuel L. Clemens to Unidentified, 23 March 1874 · Hartford, Conn · UCCL01067
- Samuel L. Clemens to Unidentified, 24 June 1874 · Elmira, N.Y · UCCL01103
- Samuel L. Clemens to Unidentified, 25 September 1874 · Hartford, Conn · UCCL01134
- Samuel L. Clemens to Unidentified, 5 December 1874 · Hartford, Conn · UCCL09848
- Samuel L. Clemens to Unidentified, 1–28 February 1875 · Hartford, Conn · UCCL09892
- SLC to Unidentified, 18 September 1875 · Hartford, Conn · UCCL13107
- Samuel L. and Olivia L. Clemens to Unidentified, 1 January 1876 · Hartford, Conn · UCCL09288
- Samuel L. Clemens to Unidentified, 28 January? 1876 · Hartford, Conn · UCCL10772
- Samuel L. Clemens to Unidentified, 4 April 1876 · Hartford, Conn · UCCL09203
- SLC to Unidentified, 17 April 1876 · Hartford, Conn · UCCL13785
- Samuel L. Clemens to Unidentified, 24 April 1876 · Hartford, Conn · UCCL09032
- Samuel L. Clemens to Unidentified, 24–30 September 1876 · Hartford, Conn · UCCL01371
- Samuel L. Clemens to Unidentified, 19 October 1876 · Hartford, Conn · UCCL10345
- Samuel L. Clemens to Unidentified, 25 October 1876 · Hartford, Conn · UCCL01379
- SLC to Unidentified, 28 November 1876, Hartford, Conn · UCCL13800
- Samuel L. Clemens to Unidentified, 30 November 1876 · Hartford, Conn · UCCL09448
- Samuel L. Clemens to Unidentified, December 1876 · Hartford, Conn · UCCL11304
- SLC to Unidentified, 20 January 1877, Hartford, Conn · UCCL13184
- Samuel L. Clemens, unaddressed, 13? May 1877 · Hartford, Conn · UCCL08684
- Samuel L. Clemens to Unidentified, July 1877 · Unknown place · UCCL09284
- Samuel L. Clemens to Unidentified, August 1877 · Unknown place · UCCL09283
- SLC to Unidentified, 25 August 1877?, Elmira, N.Y · UCCL13735
- SLC to Unidentified, Unknown date Unknown place · UCCL13337
- SLC to Unidentified, 20 and 22 September 1877 · Hartford, Conn · UCCL13105
- Samuel L. Clemens to Unidentified, 1 December 1877 · Hartford, Conn · UCCL09279
- Samuel L. Clemens to Unidentified, 1877 · Hartford, Conn · UCCL01399
- Samuel L. Clemens to Unidentified, February 1878 · Hartford, Connecticut · UCCL13081
- Samuel L. Clemens to Unidentified, 3 November 1878 · Rome, Italy · UCCL01604
- Samuel L. Clemens to Unidentified, 20 November 1878 · Munich, Germany · UCCL12218
- Samuel L. Clemens to Unidentified, January 1879 · Munich, Germany · UCCL10341
- Samuel L. Clemens to Unidentified, 24 June 1879 · Paris, France · UCCL12335
- Samuel L. Clemens to Unidentified, 1 September 1879 · SS Gallia, en route from Liverpool, England, to New York, N.Y · UCCL12027
- Samuel L. Clemens to Unidentified, 15 September 1879 · Elmira, N.Y · UCCL12348
- Samuel L. Clemens to Unidentified, October 1879 · Unknown place · UCCL09746
- Samuel L. Clemens to Unidentified, November 1879 · Hartford, Conn · UCCL12037
- SLC to Unidentified, January 1880 · Hartford, Conn · UCCL01062
- Samuel L. Clemens to Unidentified, 27 January 1880 · Elmira, N.Y · UCCL11943
- Samuel L. Clemens to Unidentified, February 1880 · Hartford, Conn · UCCL12558
- Samuel L. Clemens to Unidentified, 21 May 1880 · Hartford, Conn · UCCL11603
- Samuel L. Clemens to Unidentified, June 1880 · Hartford, Conn · UCCL11048
- Samuel L. Clemens to Unidentified, November 1880 · Unknown place · UCCL09311
- Samuel L. Clemens to Unidentified, 20 November 1880 · Hartford, Conn · UCCL09944
- Samuel L. Clemens to Unidentified, December 1880 · Hartford, Conn · UCCL10817
- Samuel L. Clemens to Unidentified, December 1880 · Hartford, Conn · UCCL01862
- Samuel L. Clemens to Unidentified, 10? December 1880 · Hartford, Conn · UCCL09062
- SLC to Unidentified, 1880 · Unknown place · UCCL08710
- SLC to Unidentified, January 1881 · Hartford, Conn · UCCL10849
- SLC to Unidentified, March 1881 · Hartford, Conn · UCCL10559
- SLC to Unidentified, 5 March 1881 · Unknown place · UCCL11008
- SLC to Unidentified, 5 March 1881 · Hartford, Conn · UCCL09313
- SLC to Unidentified, May 1881 · Hartford, Conn · UCCL09314
- SLC to Unidentified, May 1881 · Hartford, Conn · UCCL09232
- SLC to Unidentified, 5 July 1881 · Branford, Conn · UCCL01982
- SLC to Unidentified, 19 September 1881 · Elmira, N.Y · UCCL02040
- SLC to Unidentified, 25 October 1881 · Hartford, Conn · UCCL02065
- SLC to Unidentified, 22 November 1881 · Hartford, Conn · UCCL11413
- SLC to Unidentified, 23 December 1881 · Hartford, Conn · UCCL11009
- SLC to Unidentified, 2 January 1882 · Hartford, Conn · UCCL10347
- SLC to Unidentified, 19 February 1882 · Hartford, Conn · UCCL02160
- SLC to Unidentified, 22 February 1882 · Hartford, Conn · UCCL09320
- SLC to Unidentified, 26 August 1882 · Elmira, N.Y · UCCL02255
- SLC to Unidentified, 5 January 1883 · Hartford, Conn · UCCL10773
- SLC to Unidentified, 24 January 1883 · Unknown place · UCCL13216
- SLC to Unidentified, 22 February 1883 · Hartford, Conn · UCCL09325
- SLC to Unidentified, April 1883 · Hartford, Conn · UCCL12614
- SLC to Unidentified, April 1883 · Hartford, Conn · UCCL11286
- SLC to Unidentified, 13 May 1883 · Hartford, Conn · UCCL10438
- SLC to Unidentified, June 1883 · Hartford, Conn · UCCL10957
- SLC to Unidentified, 14 November 1883 · Hartford, Conn · UCCL02856
- SLC to Unidentified, 19 December 1883 · Hartford, Conn · UCCL11346
- SLC to Unidentified, 14 January 1884 · Hartford, Conn · UCCL02575
- SLC to Unidentified, 11 May 1884 · Hartford, Conn · UCCL02579
- SLC to Unidentified, 16 May 1884 · Hartford, Conn · UCCL02980
- SLC to Unidentified, 5 July 1884 · Elmira, N.Y · UCCL10475
- SLC to Unidentified, 5 August 1884 · Elmira, N.Y · UCCL09177
- SLC to \"Dear Sir,\" 20 September 1884 · Elmira, N.Y · UCCL13110
- SLC to Unidentified, 20 October 1884 · Hartford, Conn · UCCL13367
- SLC to Unidentified, 10 November 1884 · Unknown place · UCCL09331
- SLC to Unidentified, 1884 · Unknown place · UCCL02882
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