Senders: Mark Twain Club
- Isaac DeZouche for Mark Twain Club to SLC, 11 December 1879 · Gloversville, N.Y. · UCLC33107 CU-MARK
- Charles A. Ellicock for Mark Twain Literary Club to SLC, 12 November 1908 · Cleveland, Ohio · UCLC38250 CU-MARK
- Charles A. Ellicock for Mark Twain Club to SLC, 18 December 1908 · Cleveland, Ohio · UCLC38473 CU-MARK
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