Addressees: Higbie, Calvin H
- SLC to Calvin H. Higbie, 16 December 1886 · Hartford, Conn · UCCL03498
- SLC per Isabel V. Lyon to Calvin H. Higbie, 26 March 1906 · New York, N.Y · UCCL07403
- Isabel V. Lyon for SLC to Calvin H. Higbie, 12 April 1906 · New York, N.Y · UCCL07426
- SLC to Calvin H. Higbie, 10 or 11 August 1906 · Dublin, N.H · UCCL07494
- Isabel V. Lyon for SLC to Calvin H. Higbie, 11 February 1907 · New York, N.Y · UCCL12500
- Isabel V. Lyon for SLC to Calvin H. Higbie, 11 March 1907 · New York, N.Y · UCCL12501
- Isabel V. Lyon for SLC to Calvin H. Higbie, 13 May 1908 · New York, N.Y · UCCL12502
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