National Museum of Nuclear Science & History
H. L. Longcrier worked for the J.A. Jones Construction Company.
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.
Jack Powers worked for the J.A. Jones Construction Company.
