National Museum of Nuclear Science & History
Piper worked for Stone and Webster Engineering Corporation.
R. F. King worked for the Tennessee Eastman Corporation at the Y-12 Plant.
D. M. Ellett is a mechanical engineer who joined the Manhattan Project after the end of World War II.
Lewis Worth Seagondollar was an American physicist who worked at Los Alamos during the Manhattan Project.
A. Castle worked for the Roane-Anderson Company.