O'Sullivan, Mary Colette

passed peacefully and went to be with the Lord on October 22nd after a prolonged decline. Beloved daughter of the late Elizabeth Marie (nee Browne) and the late Patrick O'Sullivan; loving sister of the late Reverend John P. O'Sullivan; she is survived by many nieces, nephews and cousins in County Cork Ireland. Mary was a longtime resident of Chicago's South Loop neighborhood. After graduating from St. Xavier College with degrees in Math and Science and a minor in German she was employed with Donald P. Campbell Consulting as and actuary. She worked with Campbell until her retirement. Mary enjoyed travel and explored a number of countries. She was devoted to her church activities and was a member of the Mercy Hospital Women's Board. Visitation Thursday from 9:30 a.m. until time of Funeral Mass 10:00 a.m. at Old St. Mary's Church, 1500 S. Michigan Ave. Interment Holy Sepulchre Cemetery. Funeral Arrangement by Dalcamo Funeral Home 312-842-8681 or www.dalcamofuneralhome.com to sign guestbook.