National Museum of Nuclear Science & History
Peter Newport Bragg, Jr. served as a civilian engineer working for the U.S. Navy beginning in 1944. A brilliant chemical engineer, he volunteered for a dangerous assignment while employed by the U.
Samuel R. Macaione was a member of the Special Engineering Detachment at Los Alamos. He was known primarily not for his work, but for his membership in the thirteen-member swing band at Los Alamos, "The Keynotes.
Ruan worked for Stone and Webster Engineering Corporation.