Harrison died at 12:30 a.m. on April 4, 1841, Palm Sunday, nine days after becoming ill and exactly one month after taking the oath of office; he was the first president to die in office.

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Wikipedia contributors. (2024, October 22). William Henry Harrison. In Wikipedia, The Free Encyclopedia. Retrieved 00:13, October 25, 2024, from https://en.wikipedia.org/w/index.php?title=William_Henry_Harrison&oldid=1252725412

William Henry Harrison (Wikipedia) William Henry Harrison (February 9, 1773 – April 4, 1841) was an American military officer and politician who served as the ninth president of the United States from March 4 to April 4, 1841, the shortest presidency in U.S. history. He was also the first U.S. president to die in office, causing a brief constitutional crisis since presidential succession was not then fully defined in the U.S. Constitution. Harrison was the last president born as a British subject in the Thirteen Colonies and was the grandfather of Benjamin Harrison, the 23rd U.S. president.