office of Superior General. She was then sent to the mission in Pennsylvania. Shortly after this, in 1859, the Sisters in that state separated from the community in Michigan and were established as an independent congregation under the Bishop of Philadelphia. This congregation later further split into two more, one based in Scranton, Pennsylvania (founded in 1871), and the other in Chester County, Pennsylvania. In 1920, St. Mary Academy and College had outgrown its facilities and the institute made plans to construct a new college facility. The Sisters initially planned to build the new campus in Monroe, but Bishop Michael Gallagher invited them to build in nearby Detroit. In Detroit the college would have a larger field of influence and offer a Catholic higher education to thousands of young women who might otherwise not have such an opportunity. The Sisters built their new college in Detroit and named it Marygrove College. On June 3, 1929, St. Mary Academy in Monroe was destroyed by fire. This caused extreme difficulties for the IHM institute, as they were burdened with heavy debts from the building of Marygrove College and the cost of rebuilding the motherhouse and academy in Monroe was prohibitive. Additionally, the Great Depression of 1929 began soon afterward, which only added to their financial woes. Nevertheless, the institute finished the reconstruction and moved into their new facilities in 1932. The congregation went on to establish Marian and Immaculata high schools in the Detroit area and Immaculate Heart of Mary High School in Westchester, Illinois. In 1948, the Michigan congregation began its first missionary work outside the continental United States when the Sisters opened a mission in Cayey, Puerto Rico. In 2008, the Sisters opened Detroit Cristo Rey High School and co-sponsor it with the Congregation of St. Basil. In 2019, Marygrove College ceased operations. Acknowledgement of foundress Duchemin Their co-founder, Mother Duchemin, was the first African-American to found a predominantly-White order, and one of the earliest Black Mother Superiors in the nation. She was also the first US-born Black Catholic to become a religious sister at all. The IHM sisters, however, scrubbed their records of Duchemin for 160 years."[They] did not want to be associated with a black sister. It was "embarrassing" and "unpleasant," as sisters wrote in various letters. It would scare white people away from their ministries... before the 1980s, novices didn't even learn about Duchemin in formation... At