National Museum of Nuclear Science & History
J. R. Maddy worked for the United States Engineer District Office.
Vera Williams was in charge of the housing office at Los Alamos during the Manhattan Project. The wife of physicist John Williams, she also helped organize a maid service to help with housework and childcare.
Dana Mitchell was an American physicist. He was in charge of procurement for the physics department at Columbia University during the first year of the Manhattan Project.