The Gathorne-Hardy, J., mss., 1705-2017, consist of the correspondence, family materials, journals, and manuscripts of writer Jonathan Gathorne-Hardy, 1933-2019.
The Bloomington Garden Club mss., 1938-2016, consists of the papers, minutes of meetings, scrapbooks, and photograph albums relating to the activities of the Bloomington Garden Club, especially the annual Garden Walk.
The Bouchercon mss., 1970-2019, consist of program books, badges, tote bags, and other materials associated with The Anthony Boucher Memorial Mystery Convention (Bouchercon).
The Baker Street Irregulars mss., 1923-2007, consists of correspondence, business files, and publications of the Baker Street Irregulars, a Sherlock Holmes literary society founded in 1934.
The Diop mss., 1963-2017, consist of the notebooks, drafts, writings, correspondence, teaching materials, and born-digital materials of Senegalese author and journalist Boubacar Boris Diop, 1946- .
The Eastman mss. V, 1880-2009, consist of the photographs, correspondence, personal papers, writings, and legal documents of Max Eastman, 1883-1969; and Yvette Szekely Eastman, 1912-2014.
The Elder, Robert K. mss. II, 2001-2020, consist of personal correspondence from writer and journalist Robert K. Elder to his collaborator Aaron Vetch.