Brian Coleman Brennan, 74, of Riverside, died on Feb. 19, 2025. Born on May 31, 1950, he successfully practiced real estate for 39 years in Riverside, building community with clients who became his neighbors. He showed his dedication to the town of Riverside and its residents through his volunteer work and by supporting local businesses. He organized the Riverside Holiday Stroll for 27 years and was honored for his contributions in 2004 as Riverside’s Man of the Year. 

He recently helped establish the Seamus Brennan Memorial Basketball Tournament at Hinsdale South High School to honor the legacy of his brother. With the help of Claudia, he worked tirelessly to bring people together in his personal and professional life. Kind-hearted, generous, and loyal, he always found time for you.  

His true passion was coaching and supporting kids through sports. A self-described “health nut” and fitness fanatic, he inspired others to lead active lives. He spent years coaching boys baseball and basketball and girls softball teams and still found time for a few rounds of golf. He loved mentoring his nieces, nephews, and students and supporting high school sports at Riverside-Brookfield.  

He brightened your day, made you laugh, or helped you out. He will be greatly missed.

Brian was the son of the late Thomas Brennan and late Theresa (nee Coleman); the husband of Claudia (nee Smith); the brother of Aine (late Jack) Byans, Brigid Brennan, Rosaleen Brennan, Kathleen (Michael) Ulbert, Margaret (William) Sircher, Thomas JR, Patrick, Michael, Brian (Claudia), Sean (Joan) Brennan and the late Séamus P (Jane A.) Brennan; and the godfather, uncle and coach of many. 

A celebration of Brian’s life will be on Thursday, Feb. 27, 2025 at Riverside Golf Club, 2520 Desplaines, North Riverside from 3 to 7 p.m., with words of remembrance at 5 p.m. 

The family has requested, in lieu of flowers, that donations be made to Hinsdale South High School where a scholarship was established in his brother Seamus’ name. Donations can be given to the Brennan Family. 

Funeral Services were handled by Ivins/Moravecek Funeral Home in Riverside.