Addressees: Gerhardt, Hattie J
- SLC to Hattie J. Gerhardt, 22 February 1881 · Hartford, Conn · UCCL10955
- SLC to Karl and Hattie J. Gerhardt, 25 February–27 February 1881 · Hartford, Conn · UCCL12017 NSyU
- SLC to Karl and Hattie J. Gerhardt, 11–19 April 1881 · Hartford, Conn · UCCL01935 NNWH, ViU
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 9 May 1881 · Hartford, Conn · UCCL01952 MB
- SLC to Karl and Hattie J. Gerhardt, 26 June 1881 · Branford, Conn · UCCL01978 TxAu3, NHC
- SLC to Karl and Hattie J. Gerhardt, 31 July 1881 · Branford, Conn · UCCL01991 MB
- SLC, OLC to Hattie J. Gerhardt, 7 August 1881 · Elmira, N.Y · UCCL02552 NN-BGC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 31 August 1881 · Elmira, N.Y · UCCL12693 CtHMTH
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 31 August 1881 · Elmira, N.Y · UCCL02019 CLjC, MB
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 9 October 1881 · Hartford, Conn · UCCL02049 MB
- SLC to Karl and Hattie J. Gerhardt, 7 November 1881 · Hartford, Conn · UCCL02083 MB
- SLC to Karl and Hattie J. Gerhardt, 21 November 1881 · Hartford, Conn · UCCL02094 NjNH2
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 24 February 1882 · Hartford, Conn · UCCL02165 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 21 March 1882 · Hartford, Conn · UCCL02177 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 23 March 1882 · Hartford, Conn · UCCL02179 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 1 June 1882 · Hartford, Conn · UCCL02210 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 4 August 1882 · Elmira, N.Y · UCCL02259 NN5, MB
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 23 October 1882 · Hartford, Conn · UCCL02565 NN-BGC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 4 December 1882 · Hartford, Conn · UCCL02302 CU-MARK
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 14 January 1883 · Hartford, Conn · UCCL09791 CU-MARK
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 25 January–6 February 1883 · Hartford, Conn · UCCL10134 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 26 March 1883 · Hartford, Conn · UCCL02364 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 1–3 May 1883 · Hartford, Conn · UCCL02380 CU-MARK
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 7 May 1883 · Hartford, Conn · UCCL02379 MiD
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 14–25 June 1883 · Hartford, Conn · UCCL02881 CU-MARK
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 2 July 1883 · Elmira, N.Y · UCCL02300 MB, CPac2
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 20 July 1883 · Elmira, N.Y · UCCL11182 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 1 August 1883 · Elmira, N.Y · UCCL02818 CtHMTH
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 5 March 1884 · Hartford, Conn · UCCL02926 CLjC
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 5 April 1884 · Hartford, Conn · UCCL12036 CtHMTH
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 4 May 1884 · Hartford, Conn · UCCL02969 CtY-BR
- SLC, OLC to Hattie J. Gerhardt, 30 May 1885 · Hartford, Conn · UCCL03232 NcWsW
- SLC to Karl Gerhardt and Hattie J. Gerhardt, 14 June 1885 · Hartford, Conn · UCCL09074 PP3
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