National Museum of Nuclear Science & History
Robert O. Willis served in the 603rd Air Engineering Squadron.
John C. Pennock attended Cornell University, where he studied engineering. He was a member of the Special Engineer Detachment at Oak Ridge, where he worked as a technical engineer at the K-25 Plant.
Dimas Chavez was a young child when he moved to Los Alamos with his family in August 1943. Chavez’s father, Trinidad, joined the Zia Company at Los Alamos, where he helped construct and maintain the laboratories and facilities there.