Bonnie L. Mattiuz (nee Szymkowiak), age 81, of Downers Grove, passed away June 12, 2025. Beloved wife of the late Ronald Mattiuz. Loving mother of John (Abigail) Mattiuz, David (Diane) Mattiuz and Julie (Craig) Smith.  Devoted grandmother of John, Paige, Hannah and Leah.  Cherished sister of Russell (Anne) Szymkowiak. Dear sister-in-law of the late Edward and the late James.

Bonnie will be remembered for her love of traveling. She was a proud registered nurse for many years. Bonnie was an active volunteer at Christ Church of Oak Brook.

Visitation 10:30am until time of Funeral Service 11:30am Saturday, June 21^st at Christ Church of Oak Brook, 501 Oak Brook Rd., Oak Brook. Interment at Chapel Hill Gardens West Cemetery will be private. In lieu of flowers, memorials to Christ Church of Oak Brook or PAWS would be appreciated. Funeral Home Phone:  630-964-6500