a WGBH production in association with the British Broadcasting Corporation for Nova ; written and presented by David McCullough ; produced and directed by Carl Charlson
a co-production of David Sutherland Productions, Inc. and Frontline in association with The Independent Television Service ; written, produced, directed and edited by David Sutherland
a Firelight Media Production for American Experience ; a production of WGBH, Boston ; producer, Stanley Nelson ; writer, Marcia Smith ; director, Stanley Nelson