National Museum of Nuclear Science & History
Winfield Sylvester was a staff worker at Los Alamos during the Manhattan Project.
George Ponton served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
E. C. Harshbarger worked for the Roane-Anderson Company.
J. R. McIntyre worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Manuel Schwartz was a physicist. He worked at Los Alamos as a civilian employee from about July 6, 1944, until January or February 1946.