Addressees: Fairchild, Lucius
- Samuel L. Clemens to Lucius Fairchild, 3 May 1879 · Paris, France · UCCL01652
- Samuel L. Clemens to Lucius Fairchild, 14 June 1879 · Paris, France · UCCL01669
- Samuel L. Clemens to Lucius Fairchild, 1–9 July 1879 · Paris, France · UCCL11072
- SLC to Lucius Fairchild, 1879–1882? * Unknown place · UCCL13346
- Samuel L. Clemens to Lucius Fairchild, 28 April 1880 · Hartford, Conn · UCCL01794
- SLC to Lucius Fairchild, 5 June 1888 · Hartford, Conn · UCCL10528
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