- Harvard University, Houghton Library, Modern Books and Manuscripts
- Atlantic Monthly Company, Boston Massachusetts, Autograph File (2)
- Barrows Family Papers (9)
- Fanny Garrison Villard Papers (0)
- Houghton-Mifflin Company Records (6)
- Joseph Ishill Papers (0)
- Lewis Stiles Gannett Papers (0)
- Oswald Garrison Villard Papers (0)
- Robert A. Woods Papers (1)
- Walter Hines Page Papers (0)
- William James Papers (0)
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