National Museum of Nuclear Science & History
Percy Phillips served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Geer worked at the 100-D Area at Hanford during the Manhattan Project.
Peter Newport Bragg, Jr. served as a civilian engineer working for the U.S. Navy beginning in 1944. A brilliant chemical engineer, he volunteered for a dangerous assignment while employed by the U.
H. M. Nappen worked for the Tennessee Eastman Corporation at the Y-12 Plant.
