National Museum of Nuclear Science & History
Ruth Hillard was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Henry Penninger served in the 393rd Bombardment Squadron.
H. B. Whitmore worked for the Tennessee Eastman Corporation at the Y-12 Plant.
William Ginell is a physical chemist who worked at Columbia University and Oak Ridge during the Manhattan Project.