President Gerald Ford. After passing Ronald Reagan on Sunday, Gerald Ford became the oldest living United States President in history at 93 years old. Ford was born on July 14, 1913 in Omaha, Nebraska and has been alive for 93 years and 121 days. Former record-holder Reagan died at 93 years and 120 days in June, 2004. Before Reagan held the record, John Adams' 90 year lifespan gave him the bragging rights.