National Museum of Nuclear Science & History
Robert Parks worked for the United States Engineer District Office.
Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Treadwell worked at the 100-B and 100-D Areas at Hanford during the Manhattan Project.
Clement Frederick Toft (1922-1977) worked at Los Alamos during the Manhattan Project.
