Addressees: Coe, Mai H
- SLC to Mai H. Coe, 18 September 1899 · Sanna, Sweden · UCCL09243 MFai
- SLC to Mai H. Coe, 22 July 1906 · Unknown place · UCCL13523
- SLC to Mai H. and William R. Coe, 29 August 1906 · Dublin, N.H · UCCL14107 MFai
- SLC to Mai H. Coe, 25 December 1906 · New York, N.Y · UCCL13142 CtWep1
- SLC to Mai H. Coe, 2 March 1908 · Hamilton, Bermuda · UCCL07906 CtHMTH
- SLC to Mai H. Coe, June 1908 · Unknown place · UCCL08012 CtHMTH, Coe 1967, CU-MARK
- SLC to Mai H. Coe, 27 July 1908 · Redding, Conn · UCCL08061 CtHMTH
- SLC to Mai H. Coe, 3 November 1908 · Redding, Conn · UCCL09217 CtHMTH
- SLC to William R. Coe and Mai H. Coe, 18 January 1909 · Redding, Conn · UCCL08316 CtHMTH
- SLC to William R. Coe and Mai H. Coe, 3 February 1909 · Redding, Conn · UCCL08339 CtHMTH
- SLC to Mai H. Coe, 27 December 1909 · Redding, Conn · UCCL08524 CtHMTH
- SLC to Mai H. Coe, Unknown date, New York, N.Y · UCCL11239 NObPFP
- SLC to Mai H. Coe, Unknown date, New York, N.Y · UCCL11238 CU-MARK
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