National Museum of Nuclear Science & History
A. H. Yohannan worked for the Roane-Anderson Company.
Roland E. Ryder served in the 603rd Air Engineering Squadron.
Lewis W. McDuffie served in the 603rd Air Engineering Squadron.
R. W. Engels worked at the 300 Area at Hanford during the Manhattan Project.
T. F. Hanley, Jr. worked for Hanley & Company.
