National Museum of Nuclear Science & History
Leslie Seward worked for the United States Engineer District Office.
McCannon worked in the 200 W Area at Hanford during the Manhattan Project.
E. V. Martin worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Cox worked at the 100-B Area at Hanford during the Manhattan Project.
Katherine Gnjec was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
