National Museum of Nuclear Science & History
Downs worked in the United States Engineer District Office.
L. D. Percival King was an American physicist. After receiving his Ph.D. in Physics from the University of Chicago, King became an instructor in the Physics Department at Purdue University.
H. M. Metcalf worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Bumpus worked at the 100-B Area at Hanford during the Manhattan Project.