The Richard Hoffman - Arthur Miller Collection spans the dates between 1945 and 2002 and comprises 2.3 linear feet of playscripts, screenplays, photographs, correspondence, financial documents, posters, flyers, periodicals, journals, theater programs, news clippings, and ephemera related to the American playwright and author Arthur Miller.

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.