Felician Sister Mary Sebastian (Helen) Dzwierzynski, 100, died Aug. 14 in Our Lady of the Angels Convent.

Sister Mary Sebastian was born in Chicago, where she attended St. John of God and Hamline elementary schools and Good Counsel High School. She entered the Felician Sisters’ postulancy in 1942 and professed her final vows in 1950. She ministered for almost 25 years as a teacher in elementary schools in Illinois and Wisconsin. Later, she cared for the aged in Illinois and Wisconsin. She also served as a housekeeper at the Cardinal’s Residence.

In the Archdiocese of Chicago, she ministered at Sts. Peter and Paul (1944-1946), Sacred Heart (1948-1959), St. Bruno (1959-1960), St. Bronislava (1964-1968), St. Andrew Home in Niles (1983-1986), and the Cardinal’s Residence (1986-1994).