National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
John M. “Jack” Hubbard was an American meteorologist. Considered one of the brightest meteorologists in the world by the early 1940s, Hubbard was a former student of the renowned meteorologist Irving Crick.
Graydon Whitman arrived at Oak Ridge in March 1944, where he began work at the Y-12 separations facility.