Mary Katherine Colgan Obituary
Mary Katherine Colgan (Wheaton, Illinois) passed away on May 30, 2026. Mary Katherine, born on February 10, 1954, shared life alongside family, friends, and others. You can send your sympathy in the guestbook provided and share it with the family. You may also light a candle in honor of Mary Katherine Colgan or send a beautiful flower arrangement to the funeral service.
She was predeceased by: her parents, Robert L. Barnes and Katherine A. Barnes; and her pet Jaeger. She is survived by: her pet Bailey; her close friend Tito; her husband Kevin Colgan; her children, John Colgan (Cassie), Brian Colgan (Sarah) and Nina DiCostanzo (Anthony); her grandchildren, Connor and Madeline; and her siblings, Bob Barnes (Maureen), Sue Finley (Rick) and Julie.
