National Museum of Nuclear Science & History
Vlacil worked at the 300 Area at Hanford during the Manhattan Project.
Franklin MacGregor served as a second lieutenant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.
William J. Nicholson was born on March 2, 1924 in Chicago, Illinois. Growing up, he was interested in engineering, aviation, and aeronautics.