Of Upper St. Clair was born on December 7, 1932, in Chicago, IL, and went to be with the Lord on Thursday, October 21, 2021, at the age of 88. He was the loving husband of Mary Campbell for forty-four and half (44 1/2) years. He is survived by his children, Nancy (Erwin) Aulis, Michael Campbell, Robert (Kathy) Campbell, Patrick Campbell, Kathy (Charlie) Wolf, and Chris (Emily) Campbell; grandfather of 19 grandchildren. Daniel was a Marine Corps Veteran of the Korean War. He retired from GlaxoSmithKline in 2000, after 28 years. He was a member of St. Louise de Marillac Church and Bible Study in Upper St. Clair. He enjoyed his retirement, traveling, reading, and visiting his grandchildren. Family and friends welcome Tuesday, November 2, 2021, from 1-6 p.m. FREYVOGEL-SLATER FUNERAL DIRECTORS (412-835-1860), 112 Fort Couch Road, Bethel Park 15241 (opposite Macy's South Hills Village). Funeral Mass on Wednesday, November 3, 2021, at 11 a.m. in St. Louise de Marillac Church, St. Catherine Laboure Parish. Burial to follow in the National Cemetery of the Alleghenies at 12:30 p.m. In lieu of flowers, the family asks that donations be made to Christian Brothers of the Midwest, 7650 S. County Line Rd., Burr Ridge, IL 60527-7959 (630-323-3725). www.slaterfuneral.com