National Museum of Nuclear Science & History
Leslie Seward worked for the United States Engineer District Office.
Robert Marshak was an American physicist. Marshak was born in 1916 in New York City. He received a B.
Harris worked at the 300 Area at Hanford during the Manhattan Project.
John Rowell was a staff worker at Los Alamos during the Manhattan Project.
John W. Calkin graduated from Columbia University in 1933. He then earned a Ph.D. in mathematics from Harvard.
