In 1845 Schervier's life took an unexpected turn: her father died and a family friend, Getrude Frank, told Schervier that she was called to serve God and He would show her in whose company. She considered joining the
Trappistines, but instead of entering an existing
convent, on 3 October 1845 she and four other women left their homes to establish a religious community devoted to caring for the poor under Schervier's leadership. With the permission of a priest, they went to live together in a small house beyond St. James's Gate, and Schervier was chosen superior of the community. The life of the
Sisters was conventual, and their time spent in religious exercises, household duties, and caring for the sick poor. They formed the nucleus of the community that became known as the
Poor Sisters of St. Francis. The pre-
revolutionary potato and grain failures and the refusal of some benefactors to continue their assistance once the Sisters began ministering to prostitutes, intensified their difficulties. More women joined the group in 1849, expanding the ministry beyond Aachen; not only did they care for victims of
cholera,
smallpox,
typhoid fever, and
cancer, but they also supervised women prisoners at the Aachen prison and assisted them in finding employment after their release. The congregation obtained formal church recognition from the local
bishop on 2 July 1851, despite some authorities' objections to Schervier's severe position regarding personal poverty. Soon after receiving formal recognition as a
religious congregation, they spread their service overseas. An American foundation was established within seven years, to serve German emigrant communities in
New York,
New Jersey,
Ohio, and northern
Kentucky. At the same time Schervier oversaw the foundation of several hospitals and
sanatoria in both Europe and the United States for those suffering from
tuberculosis, then a widespread cause of death, especially among the working classes. In 1857, she encouraged Philip Hoever, a
Franciscan tertiary, in his efforts to establish the
Poor Brothers of St. Francis. Like the Sisters, they are a religious congregation of
lay brothers of the
Franciscan Third Order Regular, instituted for charitable work among orphan boys and educating the youth of the poorer classes. Schervier visited the United States in 1863, and helped her Sisters nurse soldiers wounded in the
American Civil War.
St. Mary Hospital in
Hoboken, New Jersey, was founded for this work. She visited the United States one more time in 1868. During this second visit, she attended the dedication of the new location of the St. Elizabeth Hospital in
Covington, Kentucky, staffed by twelve sisters of her congregation. ==Legacy==