National Museum of Nuclear Science & History
Ellis Ryan was a staff worker at Los Alamos during the Manhattan Project.
P. S. Stovall worked for the United States Engineer District Office.
Albert L. Evand was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Robert Penneman was an American chemist. Penneman was born in 1919 in Springfield, Illinois. He received a B.
Karl Walther was a glassblower for Columbia University and Brookhaven National Laboratory. During the Manhattan Project, Walther worked as a senior glassblower at the Nash Garage Building at Columbia, where scientists developed the gaseous diffusion process.
