Mother Mary Agnes O'Connor (6 January 1815 – 20 December 1859) was an Irish Sisters of Mercy nun, foundress, and social worker.
She initially worked in the House of Mercy, a refuge for homeless women, as well as visiting the sick in their homes and in Sir Patrick Dun's and Mercer's hospitals.
[1][2] O'Connor was sent to London on 31 July 1844, on a temporary basis to be the first superioress of St Edward's Convent, 32 Queen's Square, Bloomsbury.
She resigned from this position on 27 January 1846, at the request of bishop Dr John Hughes, to found a Convent of Mercy in New York.
[1] Further convents were established in Brooklyn on 12 September 1855, and in St Louis in June 1856 alongside Parochial and Sunday schools in the cities.