The Richard Hoffman's collection of materials from the African-American playwright Lorraine Hansberry collection spans the dates 1959-1986 and comprises 17 items, including photographs, playbills, programs, a screenplay for A Raisin in the Sun(1959), and articles related to The Sign in Sidney Brustein's Window(1964).

The Richard Hoffman - Neil Simon collection spans the dates between 1955 and 1993 and comprises three linear feet of playscripts, film scripts, correspondence, posters, flyers, periodicals, theater programs, and photographs related to the American playwright Neil Simon.