National Museum of Nuclear Science & History
D. D. Frazer worked for the Tennessee Eastman Corporation at the Y-12 Plant.
K.W. "Wally" Greager began working at Hanford in late 1951 after graduating from college. He worked on various projects at Hanford, including with the B Reactor there and the process of irraditating the fuel in the tubes in the reactor.
Hankal worked for Stone and Webster Engineering Corporation.
Otto Frisch (1904-1979) was an Austrian-born physicist. Frisch joined the Manhattan Project in 1943, but his most important contribution to the project came in 1940 in England.