Age 89, of Mt. Lebanon, passed away on Tuesday, July 6, 2021. Beloved husband of 69 years to Helen (Hegerle) Haag; loving father of Earl C. III (Gail), James (Annette), Douglas (Julianna) and the late Marion Susan Haag; loving Pop of Jeremy (April) Haag, Christopher (Laura) Haag, Sarah Ruth (Megan) Haag-Fisk, Timothy (Erin) Haag, Douglas (Sarah) Haag, Julianna (David) Little; cherished great-Pop of Thomas, Jackson, Benjamin, John Nathaniel, Annabelle, Moses, Philippa, Theodore, Clara, Lucy, Rosalie, Joseph, Lucas and Charles. Beloved brother of Carol (James) Donahue, John (Janet) Haag and the late Marie (surviving spouse, Cyril) Emmerich; also survived by nieces and nephews. Earl graduated from the University of Pittsburgh in 1953 with a BS in Chemistry and worked at Neville Chemical, then Mobay (Bayer). Family and friends welcome Thursday, 2-4 and 6-8 p.m. at WILLIAM SLATER II FUNERAL SERVICE, (412-563-2800), 1650 Greentree Rd., Scott Twp., 15220. Funeral Mass, Friday 10 a.m. in Our Lady of Grace Church, St. Michael the Archangel Parish. Burial to follow in Queen of Heaven Cemetery. Memorials may be made to UPMC Children's Hospital. www.slaterfuneral.com