Sinsinawa Dominican Sister Mary (Marie Florian) Wolff, 100, died Sept. 3 in Sinsinawa, Wisconsin.

Born in Nebraska, Sister Mary made her first religious profession as a Sinsinawa in 1938, and her final profession in 1941. She taught for 69 years, 10 while also serving as principal, and created and ran a reading program for 10 years. Sister Mary served in Illinois, Wisconsin, Minnesota, California and Colorado.

In the Archdiocese of Chicago, Sister Mary taught at St. Philip Benizi (1938-1939); Visitation (1939-1947); St. Philip the Apostle, Northfield (1959-1964); and Trinity High School, River Forest (1981-1988).

She is survived by two brothers, F. Patrick Wolff and Benedictine Abbot Theodore Wolff.