David McCullough, an award-winning author who voiced "The American Experience" and "Civil War" documentary, died. He was 89.

His rep delivered the saddening news on his Facebook page. According to his publisher, Simon and Schuster, the renowned historian passed away on Sunday at his home in Hingham, Massachusetts.

His five children surrounded him as he took his last breath two months after the passing of his beloved wife, Rosalee.

Simon & Schuster CEO Jonathan Karp issued a statement following his death, calling the author and historian "a natural treasure."

"His books brought history to life for millions of readers. Through his biographies, he dramatically illustrated the most ennobling parts of the American character," he said, as quoted by The Hollywood Reporter.

Notable personalities left heartfelt tributes as they remembered his life and legacy before his tragic passing.

Keith Olbermann said, "That rare historian who could tell the story of the giant (Truman, Adams) and the small (the victims he wrote of in "The Johnstown Flood" haunt me 30 years after I read the book) and then have a second career as a narrator. #RIP to a great man."

RIP, David McCullough

From being one of the most notable students in his school and university, McCullough eventually found himself feeling interested in history.

He worked as a writer at Sports Illustrated, United States Information Agency, and American Heritage Publishing Company. He went on to publish his first book, "The Johnstown Flood: The Incredible Story Behind One of the Most Devastating Disasters America Has Ever Known."

His other books included "The Great Bridge: The Epic Story of the Building of the Brooklyn Bridge," "Mornings on Horseback," "Truman," "In the Dark Streets Shineth: A 1941 Christmas Eve Story," "The American Spirit: Who We Are and What We Stand For," and "The Pioneers: The Heroic Story of the Settlers Who Brought the American Ideal West," among others.

Outside his life as an author, McCullough became well-known for voicing PBS' "The American Experience" and Ken Burns' "Civil War documentary."

McCullough famously won a Pulitzer Prize in 1993 for "Truman" and "John Adams." He also scored National Book Awards for "The Path Between the Seas: The Creation of the Panama Canal" and "Mornings on Horseback."

In 2016, the author brought home the nation's highest civilian award, the Presidential Medal of Freedom.