National Museum of Nuclear Science & History
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Warren Sheehan joined Mound Laboratory in April 1956. He spent the first half of his career in health physics, or radiation safety, where he developed a new methodology for determining the amount of plutonium in urine.
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.
A. J. Metler worked for Clinton Laboratories at the X-10 Reactor.