BOSTON (AP) – Arthur Walworth, author of a Pulitzer Prize-winning biography of Woodrow Wilson, died of cardiac arrest on Jan. 10 in Needham. He was 101.

Walworth began studying Wilson’s life after World War II at the advice of Harvard professor Arthur Schlesinger Sr. The biography took 10 years to write, as Walworth traveled to the United Kingdom and France to examine documentary sources and interviewed numerous Wilson associates.

His two-part biography, “Woodrow Wilson, Volume I: American Prophet” and “Woodrow Wilson, Volume II: World Prophet,” was first published in 1958. A year later, he was awarded the Pulitzer for the first volume.

Walworth later wrote on the history of American diplomacy following World War I after a mentor from Yale University, Charles Seymour, couldn’t finish the project because of poor health. That history was also published in two volumes: “America’s Moment: 1918” (Norton, 1977) and “Wilson and His Peacemakers: American Diplomacy at the Paris Peace Conference, 1919” (Norton, 1986).