John Loy

Robert Engel

Mary Frankel

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.

E. A. Cawood

E. A. Cawood worked for the Fercleve Corporation.

H. T. Dumbell

H. T. Dumbell worked for the Edenfield Electric Company.