Richard L. Riedel

Ruth A. Casler

Ruth A. Casler was a lab technician in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

George W. Price

C. H. Hartley

Otto Frisch

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.