George F. Scheer

Robert Van Gemert

Robert van Gemert worked in procurement and supply for Los Alamos during the Manhattan Project. He was also involved in organizing preparations for the Trinity Test.

Charles W. Hagen

Charles W. Hagen was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Walter C. Youngs, Jr.

Walter Youngs, Jr. worked for the United States Engineer District Office.

W. H. Clymer