Addressees: Phelps, William W
- SLC to William W. Phelps, October 1891 · Unknown place · UCCL04239 CSmH
- SLC to William W. Phelps, October–December 1891 · Berlin, Germany · UCCL04249 CSmH
- SLC to William W. Phelps, 5 August 1892 · Bad Nauheim, Germany · UCCL01649 CSmH
- SLC to William W. Phelps, 24 September 1892 · Florence, Italy · UCCL02295 CSmH
- SLC to William W. Phelps, 2 January 1893 · Florence, Italy · UCCL04319 CSmH
- SLC to William W. Phelps, 29 May 1893 · Florence, Italy · UCCL04407 CSmH
- SLC to William W. Phelps, 14 August 1893 · Krankenheil, Germany · UCCL12384 CU-MARK
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