Earl E. Sands

Karl Walther

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.

Charles Maier

Charles Maier was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

R. Lopard

R. Lopard worked for the Roane-Anderson Company.

Philip M. Heath