Addressees: Carnegie, Andrew
- SLC to Andrew Carnegie, 17 March 1890 · Hartford, Conn · UCCL04027
- SLC to Andrew Carnegie, 23 April 1890 · Hartford, Conn · UCCL04043
- SLC to Andrew Carnegie, 1 May 1890 · Hartford, Conn · UCCL04044
- SLC to Andrew Carnegie, 19 May 1890 · New York, N.Y · UCCL08486
- SLC to Andrew Carnegie, 28 January 1893 · Florence, Italy · UCCL03592
- SLC to Andrew Carnegie, 5 April 1893 · New York, N.Y · UCCL04363
- SLC to Andrew Carnegie, 7 April 1893 · New York, N.Y · UCCL04365
- SLC to Andrew Carnegie, 7 July 1897 · London, England · UCCL05252
- SLC to Andrew Carnegie, 17 May 1900 · London, England · UCCL05806
- SLC to Andrew Carnegie, 8 July 1900 · London, England · UCCL05832
- SLC to Andrew Carnegie, 6 February 1901 · New York, N.Y · UCCL05990
- SLC to Andrew Carnegie, 21 November 1901 · Riverdale, N.Y · UCCL06173
- SLC to Andrew Carnegie, 3 November 1904 · New York, N.Y · UCCL06944
- SLC to Andrew Carnegie, 28 April 1905 · New York, N.Y · UCCL07035
- SLC to Andrew Carnegie, 2 December 1905 · New York, N.Y · UCCL11154
- SLC to Andrew Carnegie, 6 December 1905 · New York, N.Y · UCCL07242
- SLC to Andrew Carnegie, 1905 · Unknown place · UCCL06966
- SLC to Andrew Carnegie, 1 February 1906 · New York, N.Y · UCCL11155
- SLC to Andrew Carnegie, 10 February 1906 · New York, N.Y · UCCL07337
- SLC to Andrew Carnegie, 26 November 1906 · New York, N.Y · UCCL11156
- SLC to Andrew Carnegie and Louise W. Carnegie, 31 December 1906 · New York, N.Y · UCCL07604
- SLC to Andrew Carnegie, 4 July 1907 · London, England · UCCL07776
- Isabel V. Lyon to Andrew Carnegie, 14 Jan 1908, New York, NY · UCCL13616
- SLC to Andrew Carnegie, 22 January 1908 · New York, N.Y · UCCL08897
- SLC to Andrew Carnegie, 28 April 1908 · New York, N.Y · UCCL11157
- SLC to Andrew Carnegie, 26 March 1909 · Redding, Conn · UCCL11158
- SLC to Andrew Carnegie, 4 February 1910 · Hamilton, Bermuda · UCCL08554
- SLC to Andrew Carnegie, Unknown date, New York, N.Y · UCCL08594
- SLC to Andrew Carnegie, Unknown date, New York, N.Y · UCCL08592
- SLC to Andrew Carnegie, Unknown date, New York, N.Y · UCCL08591
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