He was sworn in as vice president March 4, 1841 & as president April 6, 1841
The next day, April 6, 1841, Tyler was sworn in as President at the 
Indian ... On July 10, 1850, Vice President Fillmore took the oath in a public 
ceremony in... [DOC] [TLE] September 14, 1901 Swearing-In of Vice President Theodore ... [PAR] April 6, 1841.