William Henry Harrison dies of pneumonia

William Henry Harrison was the ninth president of the United States, serving 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. He was a member of the Harrison family of Virginia, and a son of Benjamin Harrison V, who was a U.S. Founding Father. His own son John Scott Harrison was the father of Benjamin Harrison, the 23rd U.S. president.