Senders: Rockefeller, John D., Jr.
- John D. Rockefeller, Jr. to SLC, 10 December 1901 · New York, N.Y. · UCLC33342 CU-MARK
- John D. Rockefeller, Jr. to SLC, 19 December 1901 · New York, N.Y. · UCLC33348 CU-MARK
- John D. Rockefeller, Jr., to SLC, 14 March 1906 · New York, N.Y. · UCLC35322 CU-MARK
- John D. Rockefeller, Jr. to SLC, 15 March 1906 · New York, N.Y. · UCLC35327 CU-MARK
- John D. Rockefeller, Jr. to SLC, 21 March 1906 · New York, N.Y. · UCLC35339 CU-MARK
- John D. Rockefeller, Jr. to SLC, 22 November 1906 · New York, N.Y. · UCLC35709 CU-MARK
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