William Henry Harrison – IQ 146.3
William Henry Harrison made history on three occasions through his term in office. During his inauguration ceremony in freezing weather, he delivered the longest speech that lasted one hour, 45 minutes.
After assuming office, Harrison lasted only 31 days, the shortest term in US history, and he was the first president to pass on while still in office. His demise was brought by pneumonia, which he contracted during the swearing-in ceremony that March morning. Sadly Harrison didn’t stay long enough in his position to make significant changes as many at the time expected him to.