National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) 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.
Joseph S. Dispensa served in the 393rd Bombardment Squadron. After the war, Dispensa was assigned to the Japan Atomic Bomb Damage Survey teams.