- Edith Wharton’s Correspondence with Morton Fullerton at the Harry Ransom Center, University of Texas
- Edith Wharton Collection at the Beinecke Library (Yale) (Advanced search tool)
- Lilly Library Wharton Manuscripts Collection(Indiana University)
- J. Pierpont Morgan Library (Main catalog) (Wharton information)
- University of Virginia Special Collections
- Scribner’s Archive (Firestone Library)
- I Tatti
- Houghton Library (Search page)
- Amherst College Library Special Collections
- John Hay Library at Brown University
- Library of Congress