National Museum of Nuclear Science & History
Pfeiff worked in the 200 West Area at Hanford during the Manhattan Project.
G. L. Ryan worked for the United States Engineer District Office.
N. D. Woodall worked for the United States Engineer District Office.
Edward Littleton was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. P. Graves worked in the United States Engineer District Office.
