Vice-presidents are often unnoticed and unremembered. However, the country has had some interesting men serving as second-in-command.
I found the following facts about vice presidents:
One of the oldest man to ever hold the office was Albert William Barkley, who was 71 when he was inauguarated as vice president under Harry S. Truman in 1949.
One of the youngest vice presidents was John Cabell Breckinridge. He was 36 when he took office as President James Buchanan's running mate.
Jefferson Davis, who served as president of the Confederacy during the Civil War, was an unsuccessful candidate for the vice president nomination at the Democratic Convention in Baltimore, nine years before the start of the War.
One of the oldest men ever nominated for the office of vice president was Henry Gassaway Davis, 80 years old, of West Virginia. Davis was nominated at the Democratic Convention in St. Louis in 1904. (He didn't make it.)