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
an Apograph Productions Inc. film for American experience ; written, produced, and directed by Rob Rapley ; American experience is a production of WGBH Boston
Twin Cities Public Television in association with Middlemarch Films ; WGBH/Boston ; produced and directed by Muffie Meyer ; written and co-produced by Ronald H. Blumer
a film by Ambrica Productions, Inc. in association with the American Experience ; written and directed by Sue Williams ; WGBH-TV, Boston ; WGBH Educational Foundation