James E. Galbreath

C. P. Hokanson

Hokanson worked at the 300 at Hanford during the Manhattan Project.

T. E. Minnear Jr.

Karl D. Larsen

Dr. Karl Larsen worked at Massachusetts Institute of Technology during the Manahattan Project. While there, he conducted heavy-water research by spectrum analysis, which was one of the prerequisites to the early atomic bombs.

John Lansdale

John Lansdale (1912 – 2003) was a colonel in the US Army. Lansdale first learned of the Manhattan project from National Defense Research Committee Chairman James B.