Providence Sister Joan Mary (Mary Ann) Schaefer, 95, died March 20 in St. Mary-of-the-Woods, Indiana.

Born in Cicero, she entered the Sisters of Providence in 1948 and professed final vows in 1956. In her 76 years as a Sister of Providence, she taught for 46 years in schools in Illinois, Indiana, Missouri and Massachusetts, including 21 years as a principal. Retiring from full-time teaching in 1998, she continued to substitute in the Chicago area.

In the Archdiocese of Chicago, she taught at Our Lady of Sorrows (1968-1969), was principal of Immaculate Conception (1975-1989), taught at St. Francis Borgia (1990-1992) and at Providence-St. Mel (1992-1998).

In 2017, she moved to the motherhouse, where she served in a variety of ways, the foremost being Providence Hall receptionist.