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
directed by Michael Kirk ; written by Michael Kirk & Mike Wiser ; produced by Michael Kirk, Mike Wiser, Vanessa Fica ; a Frontline production with Kirk Documentary Group
written, produced and directed by Neil Docherty ; senior producer, Julian Sher ; a Frontline production with the Canadian Broadcasting Corporation ; WGBH
a True Vision production for WGBH/Frontline in association with BBC Television ; produced by Jezza Neumann, Lauren Mucciolo ; directed by Jezza Neumann
a Duke Media and Spark Media production ; WGBH Boston ; produced and directed by Andrea Kalin ; recreation sequences directed by Bill Duke ; written by Lou Potter and Andrea Kalin ; consulting producer, Skip Coblyn ; senior producer [for American experience], Mark Samels ; executive producer [for American experience], Margaret Drain