National Museum of Nuclear Science & History
John Hendricks worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Otto Hillig was a Danish machinist who helped work on various projects in the early days of the Manhattan Project.
Roth worked at the 200 East Area at Hanford during the Manhattan Project.
Paris Howard was a member of the Special Engineering Detachment (SED) assigned to Los Alamos from May 1945 to April 1946.