National Museum of Nuclear Science & History
Jack Rose was a machinist and armorer in the Special Engineering Detachment (SED) assigned to the 509th Composite Group in Wendover, Utah.
Joseph Ryan was a staff worker at Los Alamos during the Manhattan Project.
R. B. Cathie worked for the Roane-Anderson Company.
Andrew Polich was a staff worker at Los Alamos during the Manhattan Project.
