National Museum of Nuclear Science & History
C. W. Cryer worked for the Midwest Piping and Supply Company.
Ahrens worked at the 100 B Area at Hanford during the Manhattan Project.
L. M. Leach worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.