Florence Knapp

American supercentenarians are citizens or residents of the United States who have attained or surpassed 110 years of age. By January 2015, the Gerontology Research Group (GRG) had validated the longevity claims of 782 American supercentenarians. The oldest living American is Naomi Whitehead, aged 115 years, 282 days. The longest-lived American ever was Sarah Knauss, of Hollywood, Luzerne County, Pennsylvania, who died on December 30, 1999, aged 119 years and 97 days.