The Sisters of Misericorde were a religious congregation founded by Marie-Rosalie Cadron-Jetté (1794 - 1864) in Montreal, Quebec, in 1848 and was dedicated to nursing the poor and unwed mothers.
Rosalie Cadron was born on a farm north of Montreal on January 27, 1794. Her mother was a mid-wife, a skill she passed on to her daughter. At age 17, she married 33-year-old Jean-Marie Jetté, a eventually bore eleven children, many of whom died very young. Madame Jetté, now widowed, began her work by giving refuge to a prostitute. In the early 1840s, Bishop Bourget asked Jetté if she would provide a safe, discreet, and welcoming home for expectant unmarried women. Madame agreed and provided shelter, not only in her own home, but in the homes of her adult children. From 1840 to 1845 Rosalie took in twenty-five women.
Bourget asked if she would form a religious congregation. The congregation was founded in 1848 in Montreal, by Marie-Rosalie Cadron-Jetté to provide assistance to poor mothers and unfortunate girls. After the first year of religious formation In 1846 Eight sisters spent a year in religious formation after which they took the traditional vows of poverty, chastity and obedience, together with a fourth vow to serve poor, single mothers. They then began formal medical training.
As Madame Jetté (Mother Mary of the Nativity) declined the role of Superior, Sister St. Jean de Chantal held this office. The institution was approved by Pope Pius IX on June 7, 1867.
The Misericordia Sisters endeavored to carry out their ministry discreetly, for the public was neither supportive of their cause nor charitable. The sisters were accused of “encouraging vice”. According to Sulpician Father Éric Sylvestre, "“When food was scarce, Rosalie would fast so that the moms could eat. She was fond of saying that ‘Single mothers are the treasure of the house.’”
The sisters came to New York City in 1887, and the following year opened the New York Mothers' Home of the Sisters of Misericorde at 106 W.123rd St. They later purchased a large house at 531 E.86th St., partly with a loan from the Emigrant Industrial Savings Bank.
The order was particularly sensitive to the social stigma attached to a woman who had born an illegitimate child. The sisters perceived that, by precluding other employment, this often tended to force a woman into prostitution, and in some cases infanticide.