Elizabeth Ann Bayley Seton , S.C. , ( August 28 , 1774 -- January 4 , 1821 ) was the first native-born citizen of the United States to be canonized by the Roman Catholic Church ( September 14 , 1975 ) .
Elizabeth Ann Bayley Seton ( August 28 , 1774 -- January 4 , 1821 ) was the first native-born citizen of the United States to be made a saint by the Roman Catholic Church . She was canonized on September 14 , 1975 .