Gerald Ford
Ford died in his home in California on December 26, 2006 from cerebrovascular disease and arteriosclerosis at the age of 93 years and 165 days. Until then, no other president had lived to be that old since Ronald Reagan in 2004. George H. W. Bush became the oldest living former president in November 2017. On March 22, 2019, Jimmy Carter gained the distinction of being the nation's longest-lived president.