National Museum of Nuclear Science & History
Tompkins worked for Stone and Webster Engineering Corporation.
Edgar Sengier (1879 – 1963) was the director of Union Miniere du Haut Katanga. After being warned by British scientists regarding the potential danger were the uranium ore to fall into the wrong hands, Sengier decided to transport half the uranium stockpile from the Congo to the United States in 1940.
Ronald C. Lauer served in the 603rd Air Engineering Squadron.
Cathcart worked at the 200 East Area at Hanford during the Manhattan Project.