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 - August Wilson Collection consists of two playbills and one poster from stage productions of African-American playwright August Wilson's playsSeven Guitars,King Hedley II, andJoe Turner's Come and Gonespanning the dates between 1988 and 1999.

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).

This collection comprises material related to the American actor and playwright Robert B. Kegerreis's 1909 dramatic adaptation of Edgar Allan Poe's short story "The Tell-Tale Heart" and his involvement in the New York theater scene of the early twentieth century.