H. A. Zweifel

V. J. McDonald

V. J. McDonald worked for the Comstock-Bryant Electric Company.

Gerald C. Guenette

George L. Kehl

George Kehl was a metallurgist and professor at Columbia University’s School of Mines. He worked at Los Alamos on the Manhattan Project.

W. W. Oshsner

W. W. Oshsner worked for the Roane-Anderson Company.