What does McCormack mean in Mary Mackillop's life?

Irene McCormack was a nun of the Sisters of St. Joseph of the Sacred Hearts of Australia. She traveled to Peru to do missionary work caring for the poor. Sister McCormack was a dedicated teacher and leader. In May 1991, she, along with seven others were executed by a rebel group known as Sandero Luminaso. Mary MacKillop College named a study center after Sister McCormack to remember her dedication as a teacher.