National Museum of Nuclear Science & History
Martens worked in the 200 West Area at Hanford during the Manhattan Project.
Edward C. Creutz (1913-2009) was an American physicist who worked on the Manhattan Project at Los Alamos and at the University of Chicago Metallurgical Laboratory.
Gross worked at the 100-D Area at Hanford during the Manhattan Project.
Gebhardt worked for Stone and Webster Engineering Corporation.