Arthur Walworth is most noted as a biographer of Woodrow Wilson. He was born in Newton, Massachusetts. He won the Pulitzer Prize for Biography or Autobiography for Woodrow Wilson, Volume I: American Prophet.
He also wrote about China and Japan. He taught at the Yali School of Changsha in 1925 and was a Senior Bachelor of the Yale's China group. In 1966 he wrote a book on Commodore Matthew Perry's expedition.
He never married or had children, but he was survived by a sister. He died in Needham, Massachusetts.