B. R. Lonsinger

Fred H. Vogel

Fred Vogel was an American chemical engineer who worked at Los Alamos during the Manhattan Project. Vogel studied at Lehigh University in Pennsylvania and later worked as Chief Engineer for the Cornell Machine Company and for the Centaur Machine Company.

Joseph Papalia

Joseph Papalia is an official historian of the 509th Composite Group, the US Army Air Force unit created specifically for dropping atomic bombs during World War II.

H. A. Zweifel

Zweifel worked at the 200 East Area at Hanford during the Manhattan Project. 

M. V. Armstrong