National Museum of Nuclear Science & History
Winfield Sylvester was a staff worker at Los Alamos during the Manhattan Project.
T. M. Mitchell worked for the Roane-Anderson Company.
George Moulton was an American chemical metallurgist. After receiving his bachelor’s degree in chemistry from Drury College, he began conducting research on radioactive metals at Iowa State.
O. N. Hall worked for the Tennessee Eastman Corporation at the Y-12 Plant.