Dates: 1974-2008. Size: 45 linear feet, 8 oversize folders, 478 photographs, 806 photographic negatives. Chicago Public Library, Harold Washington Library Center, Special Collections, Chicago Theater Collection. The Steppenwolf Theatre is an ensemble theater company founded in 1974 by Gary Sinise, Terry Kinney and Jeff Perry. The ensemble's strengths include acting, directing, playwriting and textual adaptation. The collection contains audience development, artistic and management files. [Finding aid]