Norman Foster Ramsey Jr. was an American physicist who was awarded the 1989 Nobel Prize in Physics for the invention of the separated oscillatory field method, which had important applications in the construction of atomic clocks. A physics professor at Harvard University for most of his career, Ramsey also held several posts with such government and international agencies as NATO and the United States Atomic Energy Commission. Among his other accomplishments are helping to found the United States Department of Energy's Brookhaven National Laboratory and Fermilab.

Paul Warfield Tibbets Jr. was a brigadier general in the United States Air Force. He is best known as the aircraft captain who flew the B-29 Superfortress known as the Enola Gay when it dropped a Little Boy, the first of two atomic bombs used in warfare, on the Japanese city of Hiroshima.