Narrator (voice)

Joe Morton

Acting

Self - Journalist

Ruth Gruber

Acting

Self - Military Historian

Charles Hendricks

Acting

Self - Historian

Heath Twichell

Acting

Self - Army Engineer

William Griggs

Acting

Self - Civil Engineer

Billy Connor

Acting

Self - Army Engineer

Hayward Oubre

Acting

Self - Army Engineer

John Bollin

Acting

Self - Army Engineer

Henry Geyer

Acting

Self - Quartermaster Corps

Fred Mims

Acting

Self - Army Engineer

Alden Hacker

Acting

Self - Canadian Resident

Bob Trail

Acting

Self - Canadian Resident

Alice Summer

Acting

Self - Historian

Alvin Schexnider

Acting

Self - Army Engineer

Wallace Lytle

Acting

Self - Army Engineer

Bob Batey

Acting

Self - Army Engineer

Chester Russell

Acting