National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
Frank Pittman (1914-1993) was an American chemist and government administrator. Pittman was born in Sacramento.
John Kenyon Kinnear, Sr. was raised in Brooklyn, NY. He joined the Army and because he was a tool and die maker, he was assigned to the Manhattan Project.
Gifford worked at the 200 West Area at Hanford during the Manhattan Project.