National Museum of Nuclear Science & History
Roman Vigil was a staff worker at Los Alamos during the Manhattan Project.
R. F. Ridgeway worked for the Roane-Anderson Company.
Alfred “Al” Zeltmann was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Cecil C. Gililland served in the 1st Ordnance Squadron.
