William C.

Clancy

William C. (Bill) Clancy was born in Chicago on April 13, 1930, to the late Gertrude Reilly and the late Thomas Clancy and was preceded in death by his sister Gertrude McSweeney and his brother Daniel Clancy. Bill’s dad died when he was six and his mom married the late Daniel O’Brien when Bill was ten. He acquired two stepbrothers with that marriage, the late Daniel and Robert O’Brien. He had a very happy family life.

Bill graduated from St. Philips High School in Chicago and then entered a four-year apprenticeship with Local 134, I.B.E.W. He was then a journeyman electrician for over sixty years, practicing at the West Side Medical Center, Navy Pier, and McCormick Place. He loved being an electrician for fifty years and maintained his union membership until his death.

In his twenties, Bill also served in the U.S. Army for two years.

In 1959, Bill married Marilyn (D.) De Mara and they were happily married for over 67 years. They have four children who survived him: Michelle (Terrence) O’Sullivan; Michael (Theresa) Clancy; Colette (James) Papajohn; and Timothy (Heather) Clancy. He is survived by eight grandchildren: Olivia O’Sullivan (Dillon Garrett); Daniel and Jack O’Sullivan; Paul (Kate) Clancy; John, Maureen, and Luke Clancy; and Cecilia Papajohn. He is also survived by two nieces, Rita (Richard) Hynes and Jeannette Dobry and many loving grandnieces and nephews. Bill’s family brought him great joy, were always part of his life, and supported him throughout it.

Bill and D. lived in Oak Park from 1961 until 2005, when they moved to Chicago where he died peacefully at home on November 11, 2026.

A Visitation will be held on Saturday, December 19, 2026 at St. Giles Church, 1045 Columbian Ave., Oak Park from 9:30 a.m. until time of the Funeral Mass at 10:30 a.m. In lieu of flowers, please make a contribution to St. Giles Church. Arrangements entrusted to Conboy-Westchester Funeral Home. For funeral info 708-F-U-N-E-R-A-L.