PBS ; produced and directed by Riva Freifeld ; written by Ken Chowder ; co-produced by Amy Brown ; a Riva Productions film for American Experience ; WGBH Boston
a co-production of WGBH/Boston and Thames Television, London for American Experience ; produced by Philip Whitehead ... [and others] ; written by Geoffrey C. Ward .. [and others].
an Ambrica Productions film for American Experience ; produced by Kathryn Dietz and Sue Williams ; written and directed by Sue Williams ; WGBH Educational Foundation ; WGBH, Boston
a film by Ambrica Productions, Inc. in association with the American Experience ; written and directed by Sue Williams ; WGBH-TV, Boston ; WGBH Educational Foundation
a Florentine Films production ; produced in cooperation with BBC ; produced in association with WETA-TV, Washington ; a film by Ken Burns ; written by Geoffrey C. Ward ; produced by Ken Burns and Lynn Novick