National Museum of Nuclear Science & History
L. R. Zumwalt worked for the United States Engineer District Office.
Monroe Feder was born on February 19, 1919 in Irvington, New Jersey. In 1943, he graduated from New York University.
Roy W. Carlson was an engineer. He worked on the Manhattan Project at Los Alamos and the University of California, Berkeley, as a member of the Explosives Division and Group X-2A.