National Museum of Nuclear Science & History
Irvin Mastin worked for the J.A. Jones Construction Company.
Hulbush worked at the 300 Area at Hanford during the Manhattan Project.
Samuel R. Macaione was a member of the Special Engineering Detachment at Los Alamos. He was known primarily not for his work, but for his membership in the thirteen-member swing band at Los Alamos, "The Keynotes.
Davis worked in the United States Engineer District Office.