National Museum of Nuclear Science & History
Esequiel “Zeke” Salazar began working at Los Alamos during the Manhattan Project. His first jobs were as a carpenter and a rod-man assisting surveyors for the Robert E.
Louis Rosen (1918-2009) was an American physicist. A native New Yorker and the son of Polish immigrants, Rosen was personally selected to work on the Manhattan project in Los Alamos while a graduate student in physics at the Pennsylvania State University.