Thomas John Sullivan passed away peacefully Tuesday, Aug. 10, 2021, with his twin brother, Timothy Joseph, and older brother, Michael, by his side. Tom was preceded in death by our mother, Lorraine, and our brother, David. Tom worked for years in the nuclear energy industry, traveling worldwide. He loved his fishing and hunting expeditions and found solace in the quiet. Tom, a generous fellow, would not hesitate to help, if able. He is survived his sister, Patte, and her husband, Bob, in Knoxville, Tenn.; brothers, Dennis and his wife, Debra, in Altoona, Michael, in Selbyville, Del., Timothy and his partner, Angela, in Greensburg, and James, in Greensburg; also his aunt, Joanne Howe. Tom has many cousins, nieces, nephews and friends too numerous to mention. A celebration for Tom will be at a later date.