National Museum of Nuclear Science & History
J. R. McIntyre worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Geiger worked in the United States Engineer District Office.
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
E. M. Grant worked for the Roane-Anderson Company.
O'Connor worked for Stone and Webster Engineering Corporation.
