National Museum of Nuclear Science & History
Hartley Rowe was an American industrial engineer. Rowe worked on the Panama Canal; for Lockwood Greene, an engineering firm; and for the United Fruit Company, where he rose to become vice president.
Harris worked for Stone and Webster Engineering Corporation.
John Crawford was a physicist and research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
C. L. McCallum worked for the Tennessee Eastman Corporation at the Y-12 Plant.
