a NOVA production in association with Night Fire Films and ARTE France ; written and directed by David Lebrun ; produced for Nova and narration by Sarah Holt ; produced by Rosey Guthrie and David Lebrun ; edited by Nathan Hendrie, David Lebrun, and Eric Marin
written by Stephen Lyons & Llewellyn M. Smith ; directed by Llewellyn M. Smith ; produced by Llewellyn M. Smith, Stephen Lyons ; a Nova production for WGBH Boston ; WGBH Educational Foundation
produced by Peter Frumkin ; written and directed by Nancy Porter ; co-producer, Jennifer Pearce ; a film by Nancy Porter Productions, Inc. for Nova in association with WGBH/Boston
a co-production of WGBH Boston and WTTW Chicago in association with the Chicago Historical Society for American Experience ; produced, written and directed by Austin Hoyt