National Museum of Nuclear Science & History
Born in 1903 in Baltimore, Mackie studied civil engineering at Union College in Schenectady, New York.
Raymond E. Allen served as a sergeant in the 393rd Bombardment Squadron. He was the commander regularly assigned first to Luke the Spook and later to Big Stink.
Smutz worked at the 300 Area at Hanford during the Manhattan Project.
Arnold Kramish was a physicist in the Manhattan Project and a member of the Special Engineering Detachment (SED) at Oak Ridge, Tennessee, the Philadelphia Navy Yard, and Los Alamos.