William Henry Harrison (February 9, 1773April 4, 1841) was an American military officer and politician who served as the ninth president of the United States. Harrison died just 31 days after his inauguration as president in 1841, making his presidency the shortest 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 United States Constitution. Harrison was the last president born as a British subject in the Thirteen Colonies and was the paternal grandfather of Benjamin Harrison, the 23rd president of the United States. Wikipedia
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