National Museum of Nuclear Science & History
Abraham L. Longfield was a Procurement and Property Officer for the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Jose Ortiz was a staff worker at Los Alamos during the Manhattan Project.
C. Heim worked for the Watson-Flagg Engineering Company.
Walter Groeger worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.