Robert J. Hirtzer, Lt. C.F.D., suddenly. Communications Specialist, Chicago Fire Department. Loving father of Gary M., Brian J. and Kristen L. Hirtzer. Former husband of Kathryn, nee Rench. Devoted son of Elizabeth, nee Woodlief and the late Wilbert A. Hirtzer. Dear brother of Linda (Ron) Handley, Mark (Mary) and his late twin Gary. Fond uncle of Tracy, Scott, Marisa Handley and Mark and Michael Hirtzer. Good friend to Sharon Hladik and countless others. Visitation Tuesday 3:00 – 9:00 p.m . Funeral Wednesday 9:00 a.m. from Blake-Lamb Funeral Home, 4727 W. 103rd St., Oak Lawn to St. Walter Church. Mass 10:00 a.m. Interment Holy Sepulchre Cemetery. In lieu of flowers, memorials to “Ignite the Spirit”, (supports firefighters and their families),6219 No. Oak Park Ave., Chicago, IL 60631, or charity of your choice. Info 708-636-1193 or www.blakelamboaklawn.com