a co-production of JTN Productions and Thirteen ; in association with NDR and WNET.org ; produced and directed by Mike Dewitt ; written by Mike Dewitt, Daniel Jonah Goldhagen
a Ruby Television production in association with AL Films for BBC, co-produced with WGBH Boston ; screenplay by Paula Milne and Sarah Williams ; produced by Joanna Anderson, Vicky Licorish, and Grainne Marmion ; directed by John Alexander
a film by Ken Burns, David McMahon, Sarah Burns ; a Florentine Films production ; written by Sarah Burns & David McMahon & Ken Burns ; produced by David McMahon, Sarah Burns, Ken Burns ; produced in association with WETA, Washington, DC