Born in 1774 in New York, New York; died in 1821 in Emmitsburg, Marylandd. Foundress and first superior of the Sisters of Charity in the United States. Daughter of Dr Richard Bayley, she was married to William Magee Seton, 1794, and was left a widow with five children in 1803. Becoming a convert in 1805, she went to Baltimore to open a school for girls. Here a new community was founded by her, modelled on the Sisters of Charity of Saint Vincent de Paul, of which she was elected superior. Mother Seton with 18 sisters made her vows in 1813. She was beatified in 1963, canonized in 1975.