Addressees: Thayer, Abbott H
- SLC to Abbott H. Thayer, 27 June 1901 · Saranac Lake, N.Y · UCCL13137 DSI-AAA
- SLC to Abbott H. Thayer, 17 July 1901 · Saranac Lake, N.Y · UCCL06093 MH-H
- SLC to Abbott H. Thayer and Emma B. Thayer, 21 June 1904 · Florence, Italy · UCCL12649
- SLC to Abbott H. Thayer, 23 February 1905 · New York, N.Y · UCCL13138 DSI-AAA
- SLC per Isabel V. Lyon to Abbott H. Thayer, 25 February 1905 · New York, N.Y · UCCL07007 CU-MARK
- SLC per Isabel V. Lyon to Abbott H. Thayer, 27 February 1905 · New York, N.Y · UCCL07009 CU-MARK
- SLC to Abbott H. Thayer and Emeline B. Thayer, 28 February 1905 · New York, N.Y · UCCL07010 CU-MARK
- SLC to Abbott H. Thayer, 16 September 1909 · Redding, Conn · UCCL13136 DSI-AAA
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