R. Y. Hays

Robert M. Underhill

Robert Mackenzie “Bob” Underhill (1893-1988) was a finance officer for the University of California during the Manhattan Project.

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.

Louis F. Gales

G. H. McLarty

G. H. McLarty worked for the Kellex Corporation at the K-25 Plant.