National Museum of Nuclear Science & History
Marle Velde worked for the Kellex Corporation at the K-25 Plant.
Asa Swain worked in the shop at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Gillum worked at the 300 Area at Hanford during the Manhattan Project.
William Bradshaw was a Mechanical Engineer working for the civilian contractor Tennessee Eastman at the Y-12 Plant in Oak Ridge, Tennessee.