Mark E. Biernacki, beloved husband of Lori (nee Phelan); loving father of Haleigh; fond son of Adeline (nee Osak) and the late Edward; nephew of Lillian (late Robert) Harkink; dear cousin of Carol (Peter) Marx; brother-in-law of Don (Annette) Fenstermaker and Nancy (Bill) Jacoby; loving uncle and friend of many. Funeral Friday 9:30 am from Lack & Sons Funeral Home, 9236 South Roberts Road in Hickory Hills, to St. Patricia Church for 10:00am Mass. Visitation Thursday 3-9:00pm. Interment private. (708)430-5700.