L. M. D’Alessio

Mary Jean Weingart

F.D. Rader

Alvin Zelver

Al Zelver is an author and former Army intelligence officer who observed the wreckage of Hiroshima after the bombing and spent a year in Japan after the surrender.

Frank R. Johnson

Frank R. Johnson was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.