The Letters of Mark Twain
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Senders: International Sunshine Society
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Mrs. C. M. Keys, Mrs. F. W. Baumhoff and Mrs. F. W. Biebinger for International Sunshine Society to SLC, 9 September 1907 · St. Louis, Mo. ·
UCLC37218
CU-MARK
Kathryn A. Burgess for International Sunshine Soc. to SLC, 27 March 1909 · Brooklyn, N.Y. ·
UCLC40182
CU-MARK
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