National Museum of Nuclear Science & History
H. W. Butsch worked for the William A. Pope Company.
Frank Jones worked for the Roane-Anderson Company.
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.
Robert Paulsen was a laboratory helper at the Chicago Met Lab.