National Museum of Nuclear Science & History
Manuel Montes Alcalde (1921-2009) was a machinist at Los Alamos during the Manhattan Project. Alcalde was born in San Leandro, California.
Herbert M. Parker (1910-1984) was a British-American medical physicist. He worked at Chicago, Oak Ridge, and Hanford during the Manhattan Project, and is perhaps best known for inventing the rep (a precursor of the rad) and helping develop the rem to measure radiation dosage.
