National Museum of Nuclear Science & History
Fred VanWyck moved to Richland with his wife Diana in 1944 from Charleston, West Virginia, where Van worked at DuPont's Belle Plant as a technician.
Leon D. Smith joined the Manhattan Project in 1944 and was assigned to the 509th Composite Group at Wendover Airfield in Utah.
J. N. Holt worked for the United States Engineer District Office.