Mary Royster (née Manning; 15 April 1870? – 28 December 1989) was an American supercentenarian claimant who is currently unverified. She claimed birth as Mary Manning in Mecklenburg, Virginia on 15 April 1870 as the daughter of Charles and Julia Royster Manning. She grew up in Mecklenburg and married Frank Winckler on 13 February 1895. The couple had four children before Frank died.