1788: In 1788, she made the decision to enter the Visitation of Holy Mary religious order, despite her family's opposition.
1801: With the Catholic Church again able to operate openly in France under Napoleon, in 1801 Duchesne attempted to re-establish the Visitation monastery, acquiring the buildings from its new owner.
1804: Encouraged by her mentor, the Jesuit priest, Joseph Varin, to meet Duchesne, in 1804 she traveled there.
1818: In 1818, with Barat's blessing, Duchesne headed out to the United States with four other Sisters of the Society.
1842: In 1842, after a year among the Potawatomi, it was clear that Duchesne's health could not sustain the regime of village life and she returned to St Charles.
1852: She died on November 18, 1852, aged 83.