Bulletin supporter, nuclear historian Priscilla Johnson McMillan dies at 92 Priscilla Johnson McMillan, screenshot from Atomic Heritage Foundation video. Priscilla Johnson McMillan, noted historian of the nuclear age and supporter of the Bulletin of the Atomic Scientists, died July 7 at her home in Cambridge, Mass. She was 92. “Priscilla was generous with her time and intelligence. She was astonishingly knowledgeable about Russia as it emerged from the Cold War and equally modest. She will be greatly missed,” said Kennette Benedict, a senior advisor to the Bulletin and former executive director and publisher for the organization. McMillan briefly worked on Capitol Hill for Sen. John F. Kennedy before embarking on a reporting and writing career. She was known for her expertise on the Cold War and nuclear policy. Her articles for the Bulletin included an obituary on physicist and Manhattan Project member Edward Teller.