Sinsinawa Dominican Sister Mark O’Loughlin, 96, died Feb. 4.

Born in Kankakee, Sister Mark made her first religious profession in 1954 and her perpetual profession in 1957. Her ministry has been dedicated to teaching, counseling and social work. In Illinois, Sister Mark taught at Trinity High School, River Forest; and Visitation High School, where she also served as counselor. She also served as counselor at Visitation Grade School; Sts. Faith, Hope and Charity, Winnetka; St. Viator, Arlington Heights; and Weber High School.

She also ministered in Wisconsin, Wyoming and the District of Columbia.