National Museum of Nuclear Science & History
O. E. Gilcrease worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Pyle was a research assistant at the Chicago Met Lab during the Manhattan Project.
Mann worked in the 200 West Area at Hanford during the Manhattan Project.
Phil Gardner was senior labor recruitment supervisor for the Hanford site. Although he was first an employee of the DuPont Company, he worked under the direction of the War Manpower Commission and his tasks were assigned according to the needs of the War Department.