William C. Clancy Obituary
William C. Clancy, born on April 13, 1930 in Chicago, Illinois, passed away on November 11, 2026. William leaves behind family members and others who acknowledge this loss. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
William leaves behind cherished memories for friends, family, and all who had the privilege of knowing him. William’s life was marked by connections and experiences that touched those around him. Though he is no longer with us, the moments shared, the laughter, and the support he offered will continue to resonate. All who knew William will carry forward his memory in their hearts.
He was loved and cherished by many people including: parents: Gertrude Reilly and Thomas Clancy (Daniel O'Brien); stepbrothers: Daniel and Robert O'Brien; sister: Gertrude McSweeney; brother: Daniel Clancy; wife: Marilyn (D.) De Mara; children: Michelle (Terrence) O'Sullivan, Michael (Theresa) Clancy, Colette (James) Papajohn, and Timothy (Heather) Clancy; grandchildren: Olivia O'Sullivan (Dillon Garrett), Daniel and Jack O'Sullivan, Paul (Kate) Clancy, John, Maureen, and Luke Clancy, and Cecilia Papajohn; nieces: Rita (Richard) Hynes and Jeannette Dobry; and many loving grandnieces and nephews.
Visitation will be held on Saturday, December 19th 2026 from 9:30 AM to 10:30 AM at the St. Giles Church (1045 Columbian Ave, Oak Park, IL 60302). A Mass will be held on Saturday, December 19th 2026 from 10:30 AM to 11:30 AM at the same location.
In lieu of flowers, please make a contribution to St. Giles Church.
