National Museum of Nuclear Science & History
Charles Pigott worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Seymour Calvert served for 11 months in the Special Engineering Detachment at Los Alamos. He specialized as a chemical engineer, and carried out experiments with beryllium that were often dangerous.
C. O. Nagle worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jane Yantis was the wife of a petroleum engineer, Carl Yantis, who worked at the Oak Ridge site during the Manhattan Project.
Harry Sadler worked for the A. S. Schulman Electric Company.