)
Sisters asked to take care of cholera victims, Townsend St Centre, Dublin
)
Birth of Juliana Hardman, first Superior of St Mary's Convent, Handsworth.
)
Foundation to Euroa, Victoria from Rosanna - M Assumpta Barry
)
Convent opened in Beaumont, Dublin
)
Foundation to Mohill, Co Leitrim from Longford - M Aloysius Martin
)
Birth of Catherine's youngest brother, James William McAuley
)
First profession in New York - M Vincent Haire (Foundress, Brooklyn 1855)
)
Union of Sisters of Mercy, Kerry - M Philomena Harrington
)
Foundation to Kinvara Co Clare
)
Foundation to Gympie, Queensland from Brisbane - M Stanislaus
)
Opening of Mercy Hospital, Albury, New South Wales - M Hugh Berrell
)
Death of Catherine's nephew, James McAuley
)
Foundation to Ballyshannon from Kinsale - M Ignatius Joseph McCarthy
)
Death of M Regis Murray, Foundress of Reefton
)
Sr Bernard Dickson entered Bermondsey Convent, London. She ministered in Chelsea, the Crimea and NZ
)
Foundation to Jamaica, West Indies from Cincinnatti
)
Foundation to Clara, Co Offaly from Tullamore - M Gertrude Dunne
)
School opened at St John's, Newfoundland
)
Foundation to Kilrush from Birr - M Anastasia Beckett/M Vincent Egan
)
Foundation to Sheffield from Commercial Rd, East London - Sr Scholastica McDonald.
)
Trinity Health, Novi, Michigan, was launched when the Sisters of the Holy Cross and the Sisters of Mercy Regional Community of Detroit joined their health care ministries.
)
Swanage Convent, Dorset founded from Hull - Sr Anastasia O'Hara
)
Opening of first permanent Mercy convent in Australia - Perth, Western Australia
)
Foundation to Carndonough from Derry, Northern Ireland