William A (Bill) Koresko, of Apalachin, passed away at the age of 95 on Tuesday May 5th, 2026 at Ideal Nursing Center in Endicott, NY.

He was predeceased by his wife Alda N. Koresko and by his daughter Stephanie. He is survived by his three children Victoria (Karl) Schranz of Lynchburg, VA, Sonya (William Wohkittel) Koresko of Endwell, NY, and William (Valerie Hunter) Koresko II of Prunedale, CA; and by his three grandchildren Katrina (Allen Poe) Schranz, Tara Wohkittel, and Morgan Wohkittel; and by two great grandchildren Deitrick Singleton and Aubrianna Singleton; and several nieces and nephews.

He had a long career which included serving 4 years in the Naval Air Force during the Korean conflict, and 50 years of service in Owego, NY at IBM, Loral, and Lockheed Martin. He spent forty six of those years as an engineering manager.

A private remembrance will be held at the convenience of the family. Entombment will be at Riverhurst Cemetery, Endwell. In lieu of flowers, contributions may be made in his memory to the Union Volunteer Emergency Squad.