Addressees: Natkin, Gertrude
- SLC to Gertrude Natkin, 28 December 1905 · New York, N.Y · UCCL07278
- SLC to Gertrude Natkin, 1 January 1906 · New York, N.Y · UCCL07296
- SLC to Gertrude Natkin, 3 February 1906 · New York, N.Y · UCCL07325
- SLC to Gertrude Natkin, 8 February 1906 · New York, N.Y · UCCL07332
- SLC to Gertrude Natkin, 14 February 1906 · New York, N.Y · UCCL07342
- SLC to Gertrude Natkin, 18 February 1906 · Unknown place · UCCL12546
- SLC to Gertrude Natkin, 20 February 1906 · New York, N.Y · UCCL07351
- SLC to Gertrude Natkin, 2 March 1906 · New York, N.Y · UCCL07361
- SLC to Gertrude Natkin, 4–9 March 1906 · New York, N.Y · UCCL07375
- SLC per Isabel V. Lyon to Gertrude Natkin, 13 March 1906 · New York, N.Y · UCCL07381
- SLC to Gertrude Natkin, 16 March 1906 · New York, N.Y · UCCL07389
- SLC to Gertrude Natkin, 18 March 1906 · New York, N.Y · UCCL07393
- SLC to Gertrude Natkin, 24 March 1906 · New York, N.Y · UCCL07401
- Isabel V. Lyon for SLC to Gertrude Natkin, 3 April 1906 · New York, N.Y · UCCL07411
- SLC to Gertrude Natkin, 8 April 1906 · New York, N.Y · UCCL07421
- SLC to Gertrude Natkin, 19 April 1906 · New York, N.Y · UCCL07432
- SLC to Gertrude Natkin, 27 April 1906 · New York, N.Y · UCCL07436
- SLC to Gertrude Natkin, 10 May 1906 · New York, N.Y · UCCL07439
- SLC to Gertrude Natkin, 13 May 1906 · New York, N.Y · UCCL10464
- SLC to Gertrude Natkin, 30 November 1906 · New York, N.Y · UCCL07578
- SLC to Gertrude Natkin, December 1906 · New York, N.Y · UCCL07585
- SLC to Gertrude Natkin, Unknown date · Unknown place · UCCL12402
- SLC to Gertrude Natkin, 31 December 1906 · New York, N.Y · UCCL07603
- SLC to Gertrude Natkin, 31 December 1908 · Redding, Conn · UCCL08193
- SLC to Gertrude Natkin, Unknown date · Unknown place · UCCL10387
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