National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Augustus “Gus” Kinzel was an American metallurgical engineer. He graduated at age eighteen from Columbia College, and earned a PhD in metallurgical engineering from the University of Nancy in France.
Johnson worked at the 200 West Area at Hanford during the Manhattan Project.
F. S. Tew worked for the United States Engineer District Office.
