Mollie Spiro

H.G. Ruppert

William Elmore

William C. “Bill” Elmore was an American experimental physicist who served as the chairman of the Physics department at Swarthmore College from 1948 to 1968.

John Mench

John Mench was assigned to the Special Engineer Detachment at Los Alamos where he worked as a pattern maker, creating wooden casts for metal work at the site’s foundry.

Walter M. Longfelt

Walter M. Longfelt was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.