National Museum of Nuclear Science & History
Attended Pennsylvania State University.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
John H. Harrington, Jr. served as a sergeant in the 393rd Bombardment Squadron.
Mack worked at the 300 Area at Hanford during the Manhattan Project.