The John D. Haskell papers contains general professional and personal papers documenting the life of John D. Haskell from 1941-2022. Papers primarily contain post-retirement personal correspondence from 2006-2022, as well as correspondence from his years as Librarian of the University of Maryland Baltimore County (1965-1969) as well as compiler of the Massachusetts, Maine, and New Hampshire bibliographies documenting New England History. The bibliographies were accumulated as a part of the Committee for a New England Bibliography (1972-1978). The collection also contains documentation of staff members at Swem Library (1978-2006), and memberships in library and bibliographical associations. Correspondence to and from his wife, Mary Haskell, and items from Haskell's childhood are also included.