George R. Holdren

William S. Hartnett

Bill Hartnett worked in plutonium metallurgy for the Manhattan Project at the Hanford Engineer Works from January 1943 to December 1946.

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.

Percival “Dobie” Keith

Percival C. “Dobie” Keith was Vice President for Research and Engineering for the M.W. Kellogg Company.

Charles C. Larcom