Senders: Doubleday, Page & Co.
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 13 October 1903 · New York, N.Y. · UCLC33833 CU-MARK
- Doubleday, Page & Co. to SLC, 2 January 1904 · New York, N.Y. · UCLC43607 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 23 March 1905 · UCLC34368 CU-MARK
- Gertrude Natkin and Doubleday, Page & Co. to SLC, 13 May 1906 · New York, N.Y. · UCLC35437 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 16 May 1906 · New York, N.Y. · UCLC35438 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 28 May 1906 · New York, N.Y. · UCLC35448 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 15 August 1906 · New York, N.Y. · UCLC35541 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 24 August 1906 · New York, N.Y. · UCLC35545 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 29 August 1906 · New York, N.Y. · UCLC35554 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 29 August 1906 · New York, N.Y. · UCLC35553 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 4 October 1906 · New York, N.Y. · UCLC35616 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 3 May 1907 · UCLC36116 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 15 May 1908 · New York, N.Y. · UCLC37831 CU-MARK
- Frank N. Doubleday for Doubleday, Page & Co. to SLC, 17 July 1908 · New York, N.Y. · UCLC37939 CU-MARK
- Doubleday, Page & Co. to SLC, 2 November 1908 · New York, N.Y. · UCLC38211 CU-MARK
- Ralph Danenhower for Doubleday, Page & Co. to SLC, 20 November 1908 · New York, N.Y. · UCLC38285 CU-MARK
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