National Museum of Nuclear Science & History
Arthur Sievert worked for Hanley & Company.
Frank Graham worked for the Midwest Piping and Supply Company.
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.
