National Museum of Nuclear Science & History
Harry Markee worked for the United States Engineer District Office.
B. H. Ronfeld served in the 509th Headquarters.
F. Snodgrass worked for the Roane-Anderson Company.
Sanford worked at the 300 Area at Hanford during the Manhattan Project.
Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
