David McCullough (1933-2022) twice received the Pulitzer Prize, for Truman and John Adams, and twice received the National Book Award, for The Path Between the Seas and Mornings on Horseback. His other acclaimed books include The Johnstown Flood, The Great Bridge, Brave Companions, 1776, The Greater Journey, The American Spirit, The Wright Brothers, and The Pioneers. He was the recipient of numerous honors and awards, including the Presidential Medal of Freedom, the nation's highest civilian award. Visit DavidMcCullough.com.

Dorie McCullough Lawson is David McCullough's daughter and worked with him for nearly three decades. She is the author of three previous books, including Posterity: Letters of Great Americans to Their Children.

Michael Hill is an independent historical researcher who worked with David McCullough for over thirty years. He is also the author of three previous books, including a biography of Elihu Washburne. He served as a historical consultant for the HBO production of David McCullough's John Adams.