Donald W. “Jake” Shaffer, 90, of Petroleum, passed away Wednesday morning, July 29, 2026, at Markle Health & Rehabilitation Center. Both parents preceded him in death. A 1954 graduate of Petroleum High School, Jake then went on to serve in the United States Army from 1956-1962. In addition to his wife, Judith, Jake is survived by two sons; Mark (Karen) Shaffer of Petroleum, and Michael (Tonya) Shaffer of Bluffton; a daughter, Katherine “Kathy” (Richard) Shaffer-Garr of Bluffton; a brother, Jim Shaffer of Bluffton; a sister, Lola Myers of Webster, FL; Eight grandchildren, Tyler (Brittany) Shaffer of Bluffton, Benjamin Shaffer of Petroleum, Reid (Fiancé Rachel) Shaffer of Indianapolis, Anthony Garr of Bluffton, Thomas Garr of Bluffton, Katie (Matt) Schwaller of West Chester, Ohio, Christa Shaffer of Bluffton, and Alyssa Shaffer of Bluffton; along with five great-grandchildren Brayden Shaffer, Autumn Shaffer, Finn O’Neil, Harper Shaffer and Ivy Schwaller. Jake was preceded by his parents; four brothers, Herman Jr., John, Gene and Bob Shaffer; and two sisters, Betty Schlichter and Judy Huffman.