National Museum of Nuclear Science & History
M. G. Mastin worked for the Fercleve Corporation.
James Sircom Allen (1911-1982) was a Canadian-American physicist who worked at the Massachusetts Institute of Technology and Los Alamos during the Manhattan Project.
Richard Ehrlich worked at Los Alamos in the Theoretical Physics Division, during the Manhattan Project.
Paul was a staff member at Los Alamos during the Manhattan Project.