William John Kostiak, age 75, died on September 13, 2021 in Palm Coast, FL where he lived for many years. William was raised in Pitman and was a graduate of Pitman High School. He served in the US Navy. William was the son of the late Ella (Zane) and William B. Kostiak. Survived by his children Michael Kostiak, Brian Kostiak, Shawn Van Meter, Kelly Burger, Nancy Lee, Zane Kostiak, Debbie Christoff and Barbie Metzger and sister Denise Kostiak. Graveside Service in Eglington Cemetery will be private.