Emma Mercer

Emma Maria Mercer (née Rutherford) (28 June 1854 - 11 January 1964) was an American centenarian. At the age of 109 years, 169 days, she may have been the world's second-oldest living person, behind Mary Kelly, when she died. She was born as Emma Maria Rutherford in Spring Green, Sauk, Wisconsin. The couple later moved to South Dakota. She married Samuel Mercer in 1882. Samuel died in 1949. Mercer lived the remaining 15 years of her life in South Dakota.