President Washington was the wealthiest man in American at the time of his election as President, but he had to borrow money to attend his inauguration. His enormous wealth was attributed the vast property that he owned which produced almost no cash flow.
John Tyler, who was President from 1841 to 1845, joined the Confederacy twenty years later and became the only President named a sworn enemy of the United States.
President Andrew Jackson believed the world was flat
FDR was so superstitious, that he would never leave town on a Friday and never sit at a table with 13 people.
Franklin Roosevelt was related to Teddy Roosevelt, Winston Churchill and even his own wife, Eleanor, a second cousin. Although the relationship with the Roosevelt's was an uncomfortable situation for many people, there was stranger twist to the First Couples marriage. For 30 plus years, from 1932 on, Eleanor Roosevelt had an affair with another woman, Associated Press reporter Lenora Hickok. Eleanor wrote well over 2,300 passionate love letters to Hicky which Hicky saved on the condition that they not be published until 10 years after Eleanor's death.