Ellsberg, Michael: - Michael Ellsberg, Daniel's son, is the author of three previous books. His writing has been featured in the New York Times, the Washington Post, Time, and more. He lives in Berkeley, CA.

Thomas, Jan R.: - Jan R. Thomas was Daniel Ellsberg's longtime assistant. In preparing Ellsberg's papers for the UMass Amherst Archives, she recognized the significance of his unpublished notebooks, which became the impetus for this book. Jan lives in the San Francisco Bay Area.

Ellsberg, Daniel: - Daniel Ellsberg, the iconic whistleblower known for leaking the Pentagon Papers in 1971, was the author of The Doomsday Machine and Secrets. A lecturer, scholar, writer, activist, and truth teller, he robustly communicated his lifelong concerns about the dangers of nuclear weapons and wars of intervention until his death in 2023.