National Museum of Nuclear Science & History
Henry Martin worked for the J.A. Jones Construction Company.
Laura A. Marshall was a laboratory technician in the Health Division at the University of Chicago Met Lab.
Hokanson worked at the 300 at Hanford during the Manhattan Project.
Julius “Osty” Ostspowicz was a glassblower in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
