Senders: Keller, Helen
- Helen Keller to SLC, 14 June 1904 · UCLC39138 CU-MARK
- Helen Keller to SLC, 8 December 1905 · Wrentham, Mass. · UCLC35026 CU-MARK
- Helen Keller to SLC, 27 March 1906 · Wrentham, Mass. · UCLC35353 CU-MARK
- Helen Keller to SLC, 18 December 1906 · UCLC36128 CU-MARK
- Helen Keller to SLC, 18 February 1907 · UCLC36133 CU-MARK
- Helen Keller to SLC, 19 November 1908 · Wrentham, Mass. · UCLC38927 CU-MARK
- Helen Keller to SLC, 15 January 1909 · Wrentham, Mass. · UCLC38613 CU-MARK
- Helen Keller to SLC, 3 January 1910 · Wrentham, Mass. · UCLC46320 CU-MARK
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