National Museum of Nuclear Science & History
F. L. Shanklin worked for the Union Carbide & Carbon Corporation.
Francis Birch (1903-1992) was an American geophysicist. In 1942, Birch worked at the MIT Radiation Lab, which was tasked with radar development.
John worked at Los Alamos during the Manhattan Project, as Enrico Fermi‘s bodyguard. He moved with his wife and daughter to Los Alamos in 1943.
James Leslie Tuck was a British physicist and a member of the British Mission to Los Alamos during the Manhattan Project.