Barbed wire, still an essential tool in the livestock industry, is today a popular collector's item.
At three points in US history, six presidents (current or former) were alive at the same time. These points were: From March, 1861-January, 1862: Presidents Van Buren, Tyler, Fillmore, Pierce, Buchanan, and Lincoln were alive. January 1993-April 1994: Presidents Nixon, Ford, Carter, Reagan, Bush (the first) and Clinton were all around. January, 2001-June, 2004: Still living were Presidents Ford, Carter, Reagan, Bush (the first), Clinton, and Bush (the second). When either Trump or Clinton take office in January, 2017, he or she will join Carter, Bush I, Clinton, Bush II, and Obama as living presidents, making it a fourth time in history six presidents were alive.
He took the office in 1901 at the age of 42. Find the complete list of top 10 oldest United States presidents below: Ronald Reagan: 69 years old; William Henry Harrison:68 years old; James Buchanan: 65 years old; George H.W. Bush: 64 years old; Zachary Taylor: 64 years old; Dwight D. Eisenhower: 62 years old; Andrew Jackson: 61 years old; John Adams: 61 years old