Of Tonawanda, NY entered into rest on November 3, 2026. Beloved husband of the late Peggy S. Grupp; devoted father of Debra (Gary) Giglia, Diane Lee, Thomas E. (Kelly) Grupp II, and Paul A. (Monika) Grupp; cherished grandfather of Dana (Matthew), Lucia (Charles), Cara (Brandon), Rebecca (Jake), Phil (Brittany), Dana, Justin, Amanda, Taylor (Eric), Nicholas (Mary Kate), Emily (Cameron), Evan, Noah, Maggie (Banker), and Peyton; great-grandfather of Ezekiel, Isabel, Magnus, Maximus, Alaric, Ellie, Ari, MacKenzie, and Addison; dear brother of the late David A. (Esther) Grupp; also survived by several loving nieces, nephews, family and friends. Thomas was a longtime member of the Masonic Order and Order of the Eastern Star. He enjoyed gardening, coin collecting, and crafts, including painting on glass. Relatives and friends may visit Lombardo Funeral Home (Northtowns Chapel) 885 Niagara Falls Blvd. near Eggert/Sheridan Dr. on Thursday, November 12 from 5-7, where a service will follow at 7PM. Interment Acacia Park Cemetery.