National Museum of Nuclear Science & History
B. H. Ronfeld served in the 509th Headquarters.
Green worked at the 300 Area at Hanford during the Manhattan Project.
Manuel Montes Alcalde (1921-2009) was a machinist at Los Alamos during the Manhattan Project. Alcalde was born in San Leandro, California.
Charles Critchfield (1910-1994) was an American mathematical physicist. In December 1942, he was approached by J.