William M. "Billy" O' Hara passed away on November 20, 2023 at the age of 72. Husband of Juliet "Jul" O'Hara (nee Barnhart). Father of Billy O'Hara, Alysia Abate, Carla Tapper, John Campbell, and Joey Luptak. Grandfather of 9. Great grandfather of 2. Son of the late John and Florence O'Hara. Brother of Joan, John, MaryLu, Tommy, and Carol Ann. Also survived by nieces and nephews. Relatives and friends are invited to greet his family on Saturday at Koller Funeral Home, 6835 Ridge Ave., beginning at 9:30 AM. A Funeral Service will follow at 10:30 AM. Interment is Private.