National Museum of Nuclear Science & History
J. E. Metzger worked for the Comstock-Bryant Electric Company.
Bretscher worked at Los Alamos during the Manhattan Project.
John Tempka (1923-2017) was an American engineer. Tempka was born in Boydsville, Ohio. He was studying at the University of Detroit when he was recruited to join the U.
G. W. Richards Jr. served in the 509th Headquarters.
