National Museum of Nuclear Science & History
J. J. Allinson worked for the Kellex Corporation at the K-25 Plant.
Pechar worked in the 300 Area at Hanford during the Manhattan Project.
W. L. Brewer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Frank Ross served in the Army at Los Alamos during the Manhattan Project.
Paul McKim worked for the United States Engineer District Office.