National Museum of Nuclear Science & History
Johnson worked for Stone and Webster Engineering Corporation.
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.
Horace Cunningham worked for the Roane-Anderson Company.
Joseph Pappalardo was a staff worker at Los Alamos during the Manhattan Project.
