National Museum of Nuclear Science & History
L. A. Castellanos worked for the J.A. Jones Construction Company.
Marshall worked in the 100 D Area at Hanford during the Manhattan Project.
Simeon T. Cantril (1908-1959) was an American physician. He was born on February 17, 1908 in Hyrum, Utah.
Emily Ninger was a staff worker at Los Alamos during the Manhattan Project.
