Thomas Francis Miller, age 91, of Monaca, passed away on Friday, October 24, 2025. He was born in McKees Rocks on April. 8, 1934, the son of the late Frank and Emma (Zaitz) Miller. Beloved husband of Shirley Miller for 34 years and Janet Miller for 19 years; loving father of David Miller, Paul (Diane) Miller and Ronald (Crystal) Miller; dear grandfather of Sarah, Danielle, Cristin, Thomas, Marissa, Lauren, and Emma; great grandfather of Crew. He was preceded in death by his siblings, Francis, Vivian and Emma. Thomas joined the U. S. Air Force, serving in the U. S. Avionics as an aircraft maintenance technician. After his military service, he continued as an aircraft technician for U. S. Airways, retiring in 1995. In his free time, he enjoyed outdoor activities of hunting, fishing and boating. His other interests lie in woodworking and building electronics. Following his wishes, the family is having a private service and burial. Services entrusted to R. D. Copeland, Ltd., Coraopolis, PA.