how long was william harrison president
William Henry Harrison's Presidency. Explore the highs and lows of ninth U.S. President William Henry Harrison's administration, from his lengthy inaugural address to his death in office. Introduction. William Henry Harrison (1773-1841), Americaâs ninth president, served just one month in office before dying of pneumonia. His tenure, from March 4, 1841, to April 4, 1841, is the shortest of any U.S. president. Harrison, who was born into a prominent Virginia family, joined the Army as a young man and fought American Indians on the U.S. frontier.