Thomas O'Heath, age 71, of Wheeling. Beloved husband of the late Mary O'Heath for 25 years. Loving father of Edward O'Heath, Kelly (AJ) Data, Margie (Mike) Schneider, and Patrick O'Heath. Adored grandfather of Nicholas, Myles, and Harper. Fond brother of the late Daniel O'Heath. Loving uncle, cousin, and friend of many. Visitation Monday, May 9th from 3 pm to 8 pm at Kolssak Funeral Home, 189 S Milwaukee Ave (2 Blocks South of Dundee Rd), Wheeling. Visitation continues Tuesday 10 am at Prince of Peace Catholic Church, 135 S Milwaukee Ave., Lake Villa. Funeral mass to follow at 11 am. Interment St. Michael the Archangel Cemetery, Palatine. In lieu of flowers, donations to the American Heart Association at https://www.heart.org/ are greatly appreciated. To leave a condolence or for more information visit www.funerals.pro or call 847.537.6600.