National Museum of Nuclear Science & History
J. R. Stark worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John H. Williams (1908-1966) was a Canadian-American physicist. Williams transferred to Los Alamos in early 1943 and was among the first group of scientists to arrive on the Hill.
John Jackson was a member of the 393rd Bomber Squadron in the 509th Composite Group stationed in Wendover, Utah, and later on Tinian Island in the Pacific.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.