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 Mystery Writers of America mss., 1945-2019, consist of the records and correspondence of the Mystery Writers of America, Inc., the leading association for professional crime writers in the United States.
