I'm lookong for an old boyhood friend I havent seen in over 40 years. His name is William Joseph.?

We grew up together in Chester, Pa. I know he moved to Delaware after high school and went into the Navy. His family was originally from upst ate Penn. and he may have moved back there at some point. He was a great kid and I would love to meet up with him again or find out what happened to him. He would be about 65 years old now. Anyone who has info on "Billy" or who knows him please let me know or tell him that an old friend is trying to get in touch with him.