Richard S. Ringhelm

E. G. Richardson

E. G. Richardson worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Frank Mackie

Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.

Joseph Broscko

Bernard Erlanger

Bernard F. Erlanger was a technical adviser on the Manhattan Project who worked at Uravan, CO and at Los Alamos.