National Museum of Nuclear Science & History
H. L. Huffman worked for the Roane-Anderson Company.
Leon D. Smith joined the Manhattan Project in 1944 and was assigned to the 509th Composite Group at Wendover Airfield in Utah.
Leon Matlock worked for the Kellex Corporation at the K-25 Plant.
Not long after completing his sophomore year at MIT, Norman Brown was recruited into the Manhattan Project.