Addressees: Carnegie, Louise W
- SLC to Louise W. Carnegie, 8 April 1893 · New York, N.Y · UCCL13624
- SLC to Louise W. Carnegie, 31 March 1903 · Riverdale, N.Y · UCCL06612
- SLC to Louise W. Carnegie, 1904, Florence, Italy · UCCL06776
- SLC to Louise W. Carnegie, 1905, New York, N.Y · UCCL06975
- SLC to Andrew Carnegie and Louise W. Carnegie, 31 December 1906 · New York, N.Y · UCCL07604
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