National Museum of Nuclear Science & History
Easter worked in the United States Engineer District Office.
Harold Hoover was a member of the Special Engineer Detachment during the Manhattan Project. He worked as a filter foreman at the Y-12 Plant, but his real job was in counterintelligence, to ensure no sabotage occurred.
Alfred Neyens served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
M. R. Nason worked for the Union Carbide & Carbon Corporation.
