National Museum of Nuclear Science & History
Thelma worked at Los Alamos during the Manhattan Project.
Nielsen worked at the 300 Area at Hanford during the Manhattan Project.
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.
Harold Hurst worked for the J.A. Jones Construction Company.