National Museum of Nuclear Science & History
Frank J. Schnettler was an American metallurgist who studied the properties of plutonium at Los Alamos.
Clarence Grover Sproul worked as a machinist on the Manhattan Project in Los Alamos, NM from January through June 1945.
J. G. Branfeld served as a sergeant in the 390th Air Service Group.
R. A. Bridgewater worked for the Roane-Anderson Company.
