.Robert Y. Callahan, 64, Sgt., University at Chicago Campus Police for 37 years. Devoted son of the late Gerald and Eileen, nee Yore, Callahan. Beloved father of Michael (Melissa) and Brendan. Visitation Sunday 3:00 – 9:00 p.m. and Monday 9:00 a.m. until time of funeral service at Blake-Lamb Funeral Home, 4727 W. 103rd St., Oak Lawn 12:00 Noon. Interment Mt. Olivet Cemetery. Member of Royal Ayres Drum & Bugle Corps. In lieu of flowers, memorials will be appreciated to the American Heart Association. For info 708-636-1193 or www.blakelamboaklawn.com.