National Museum of Nuclear Science & History
F. L. Casey worked for the J.A. Jones Construction Company.
Ralph Steinhardt was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
F. G. Reichle worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.