Sources: CAlb2
- SLC to James R. Osgood, 1 February 1881 · Hartford, Conn · UCCL01901 CAlb2
- SLC to Francis E. Bliss, 15 April 1881 · Hartford, Conn · UCCL01936 CAlb2
- SLC to Margaret A. Bentley, 7 July 1887 · Elmira, N.Y · UCCL03594 CAlb2
- SLC to Samuel E. Moffett, 14–15 August 1895 · Vancouver, Canada · UCCL04943 CU-MARK, CAlb2
- SLC to L. P. Ward, 3 May 1902 · New York, N.Y · UCCL09439 CAlb2
- SLC to Joseph T. Goodman, 9 October 1903 · New York, N.Y · UCCL06738 CU-MARK, CAlb2
- SLC to ? Gibson, 8 June 1905 · Dublin, N.H · UCCL07059 CAlb2
- SLC to Joseph T. Goodman, 16 April 1906 · New York, N.Y · UCCL07430 CU-MARK, CAlb2
- SLC to Susan L. Warner, Unknown date, Hartford, Conn · UCCL09435 CAlb2
- SLC to Mr. and Mrs. Frank Gross, Unknown date · Unknown place · UCCL10179 CAlb2
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