National Museum of Nuclear Science & History
Lester Orlan Keen worked as an engineering draftsman at Hanford during the Manhattan Project. His son, Jack Keen, was a young boy at the time.
Ellerbroek worked for Stone and Webster Engineering Corporation.
Frederick Ashworth (1912 – 2005) was a Vice Admiral in the US Navy. Ashworth’s work on the Manhattan Project began in 1944.