National Museum of Nuclear Science & History
C. P. Gaither worked for the J.A. Jones Construction Company.
Ralph Carlisle Smith was born in 1910 in New York. He co-authored Project Y: The Los Alamos Story, with David Hawkins and Edith Truslow.
Heater worked at the 100-D Area at Hanford during the Manhattan Project.
Paul Raymond Nelson was born in Hagerman, Idaho on May 31st, 1916. Soon after, he moved to Olympia, Washington and then to Seattle.