National Museum of Nuclear Science & History
E. J. Risdon worked for the Roane-Anderson Company.
John H. Williams (1908-1966) was a Canadian-American physicist. Williams transferred to Los Alamos in early 1943 and was among the first group of scientists to arrive on the Hill.
Francis J. Schramke served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
R. B. Cathie worked for the Roane-Anderson Company.
Charles Helmers worked for the J.A. Jones Construction Company.
