National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
H. H. Brand worked for the Edenfield Electric Company.
George Mahfouz joined the Manhattan Project in 1943 when he was offered a job at the Houdaille-Hershey nickel plant in Decatur, Illinois.
John G. Peters served in the 393rd Bombardment Squadron.
Robert Woodward was a staff worker at Los Alamos during the Manhattan Project.