ジェロントロジー・リサーチ・グループ
American supercentenarians are citizens or residents of the United States who have attained or surpassed 110 years of age. , the Gerontology Research Group (GRG) had validated the longevity claims of 782 American supercentenarians. As of , the GRG lists the oldest living American as Thelma Sutcliffe (born in Benson, Omaha, Nebraska on October 1, 1906), aged . The longest-lived person ever from the United States was Sarah Knauss, of Hollywood, Pennsylvania, who died on December 30, 1999, aged 119 years and 97 days.