Economic hardship and political unrest in Ireland drove mass emigration to America between the mid-19th and early 20th centuries, with women forming the majority of Irish emigrants. Alarmed by the dangers faced by young, single women departing from Queenstown, reformer Charlotte Grace O’Brien established the O’Brien Emigrants Home in 1882 and investigated conditions upon arrival in New York.
Her efforts led to the creation of the Mission of Our Lady of the Rosary at Castle Garden in 1884, which provided protection, housing, job placement, and guidance for Irish immigrant women. Over time, the Mission assisted tens of thousands of women, safeguarded arrivals from exploitation, and became a critical support system for Irish female immigrants entering New York.