National Museum of Nuclear Science & History
W. J. Karraker worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Philipp Klein was a part-time switchboard operator in the SAM Lab while studying chemical engineering at Columbia University.
Mary P. Frankel was one of the “human computers” at Los Alamos during the Manhattan Project. In the spring of 1943, Frankel and her husband, Stan, an American physicist who later became a computer scientist, arrived at Los Alamos.
