National Museum of Nuclear Science & History
F. A. Lehmann worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Weil was a member of the Special Engineer Detachment serving at Los Alamos from early 1943 through the end of the war.
Mann worked in the 200 West Area at Hanford during the Manhattan Project.
Thomas was a group adjutant with the 509th Composite Group at their headquarters in Wendover, Utah and Tinian Island in the Pacific.
