Sources: MdBE
- SLC to Richard Malcolm Johnston, 5 April 1887 · Hartford, Conn · UCCL03556 MdBE
- SLC to Richard Malcolm Johnston, 9 November 1888 · Hartford, Conn · UCCL03830 MdBE
- SLC to Richard Malcolm Johnston, 4 January 1889 · Hartford, Conn · UCCL03846 MdBE
- SLC to Richard Malcolm Johnston, 9 January 1889 · Hartford, Conn · UCCL03848 MdBE
- SLC to Richard Malcolm Johnston, 11 January 1889 · Hartford, Conn · UCCL03851 MdBE
- SLC to Richard Malcolm Johnston, 12 July 1889 · Hartford, Conn · UCCL03910 MdBE
- SLC to Unidentified, Unknown date · Unknown place · UCCL09039 MdBE
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