Sister Joan (Joseph Bernard) Zlogar, 90, died July 14 in St. Mary of the Woods, Indiana.

Born in Joliet, Sister Joan entered the Sisters of Providence in 1950 and professed final vows in 1958.

She ministered in education for 30 years as a business teacher and school administrator in Indiana, Illinois and Washington, D.C.

She also served as treasurer for her province and assistant to the treasurer for the Cenacle Sisters in Chicago.

In the Archdiocese of Chicago, she served at St. Mark (1953); St. Columbkille High School (1953-1957, 1958-1966); Marywood High School, Evanston (1957-1958); Mother Theodore Guerin High School, River Grove (teacher, 1969-1973; principal, 1987-1991); Josephinum High School (1986-1987); Cenacle Midwest Provincialate (1992-1997).

After retirement, she volunteered with organizations including the alumnae organization of St. Columbkille High School.