National Museum of Nuclear Science & History
Marilyn Williams was a staff worker at Los Alamos during the Manhattan Project.
William Ladniak worked for Clinton Laboratories at the X-10 Reactor.
Jack Rose was a machinist and armorer in the Special Engineering Detachment (SED) assigned to the 509th Composite Group in Wendover, Utah.
W. H. Jennens worked for the Tennessee Eastman Corporation at the Y-12 Plant.