The ninth President of the United States, William Henry Harrison, only held the office for 32 days. After being declared President on March 4th 1841 he became ill on March 26th, and his death on April 4th was caused by complications arising from pneumonia. He was the first US President to die in office and still holds the record for the shortest presidential term. He is also notable as the last President to be born as a British citizen, as he was born in Virginia in 1773, before America gained independence. He was 68 when he became President and his record as the oldest US President to take office stood until Ronald Reagan was elected President at 69. Harrison’s father, Benjamin Harrison V, was a Founding Father whose signature is on the American Declaration of Independence and his grandson, Benjamin Harrison, became the 23rd President of the United States in 1889.