Cornelius Mahoney Sheehan (October 27, 1936 – January 7, 2021) was an American journalist. As a reporter for The New York Times in 1971, Sheehan obtained the classified Pentagon Papers from Daniel Ellsberg. His series of articles revealed a secret United States Department of Defense history of the Vietnam War and led to a U.S. Supreme Court case, , which invalidated the United States government's use of a restraining order to halt publication.

He received a Pulitzer Prize and a National Book Award for his 1988 book A Bright Shining Lie, about the life of Lieutenant Colonel John Paul Vann and the United States involvement in the Vietnam War.

Early life

Sheehan was born in Holyoke, Massachusetts on October 27, 1936. His father, Cornelius Joseph Sheehan, worked as a dairy farmer; his mother, Mary (O'Shea), was a housewife. Both immigrated to the United States from Ireland. He was raised on a dairy farm near Holyoke. Sheehan graduated from Mount Hermon School (later Northfield Mount Hermon) and Harvard University with a B.A. in history (cum laude) in 1958. He served in the U.S. Army from 1959 to 1962, when he was assigned to Korea and then transferred to Tokyo; there, he did work moonlighting in the Tokyo bureau of United Press International (UPI). Sheehan was one of numerous U.S. and international journalists who received valuable information from Pham Xuan An, a 20-year veteran correspondent for Time Magazine and Reuters, later revealed to also be a spy for the National Liberation Front for South Vietnam.

In the fall of 1966, he became the Pentagon correspondent. Two years later, he began reporting on the White House. He was a correspondent on political, diplomatic, and military affairs. After being notified of their existence by Marcus Raskin and Ralph Stavins at the Institute for Policy Studies, Sheehan copied the Pentagon Papers for the Times on March 2, 1971, against leaker and Vietnam-era acquaintance Daniel Ellsberg's wishes. He made the copies with the help of his wife Susan in numerous copy shops in Boston, then they flew with the copies to a hotel room at The Jefferson in Washington for reading, before mailing them to his editor James L. Greenfield's apartment, then he worked with Greenfield and a large team of editors, writers and lawyers on organizing the copies for publication in the New York Hilton Midtown, as he would later reveal in 2015.

Sheehan published an article in the New York Times Book Review on March 28, 1971, entitled "Should We have War Crime Trials?". He suggested that the conduct of the Vietnam War could be a crime against humanity and that senior U.S. political and military leaders could be subject to trial. In response, the Pentagon prepared a detailed rebuttal justifying its conduct of the war and exonerating senior commanders, however, the rebuttal was never released due to the belief that it would only exacerbate the issue.

Sheehan published his first book, The Arnheiter Affair, in 1972. Marcus Aurelius Arnheiter, the subject of the book, proceeded to bring an action for libel against Sheehan but was ultimately unsuccessful. The time and effort spent fighting three libel suits in connection with his first book that endured until 1979, and Sheehan's lengthy recovery from his injuries, delayed work on his Vietnam book. After the Times ended his unpaid leave in 1976, he formally resigned from the newspaper to continue work on the book.

Although he received an advance of $67,500 (of which he was entitled to $45,000 prior to publication) from Random House in 1972, Sheehan – a "dreadfully slow" writer who "[chased after] the last fact" – mainly subsisted on lecture fees and fellowships from the John Simon Guggenheim Memorial Foundation (1973–1974), the Adlai Stevenson Institute of International Studies at the University of Chicago (1973–1975), the Lehrman Institute (1975–1976), the Rockefeller Foundation (1976–1977), and the Woodrow Wilson International Center for Scholars (1979–1980) for the remainder of the 1970s. According to William Prochnau, the latter fellowship marked a significant "turning point" for the book, as Sheehan "talked about Vietnam all day long every day" with Peter Braestrup after abandoning several hundred manuscript pages later characterized as a "false start" by Susan Sheehan. When Sheehan finished "three-fifths of the manuscript" in the summer of 1981, the initial advance was renegotiated and raised to $200,000 with a projected delivery date of 1983, while William Shawn of The New Yorker agreed to excerpt the finished manuscript and advance funds as needed. It also won the National Book Award for Nonfiction. In 1990, Sheehan received the Golden Plate Award of the American Academy of Achievement.

Later life

Sheehan released the book, After the War Was Over: Hanoi and Saigon, in 1992. It was inspired by his visit to Vietnam three years earlier. She wrote for The New Yorker at the time,

  • A Bright Shining Lie: John Paul Vann and America in Vietnam (1988),
  • After the War Was Over: Hanoi and Saigon (1992),
  • A Fiery Peace in a Cold War: Bernard Schriever and the Ultimate Weapon (2009),

Sheehan was portrayed by Jonas Chernick in The Pentagon Papers (2003), and Justin Swain in The Post (2017). He appears as himself in Ken Burns' 2017 documentary series The Vietnam War.

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