National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.
Lawrence Rosenburg was a staff worker at Los Alamos during the Manhattan Project.
Ruth Marshak was an American teacher and the wife of physicist Robert Marshak. Marshak was born in 1916.
