Man who knew my grandfather

At the grocery store one day in my relatively new home in a small town in Florida, there was a new "bag boy", an elderly man and he helped me out to the car with my groceries. I asked him where he was from because his accent was not a local one, and he said Pennsylvania. I said, "I was born in PA...what town are you from?" He said it was a small town I would not likely have heard of...turned out I had and I told him my home town where I lived until I was 7. He asked my maiden name, I told him and he said "was your grandfather a policeman?" I said "yes" and he said "he was my uncle's best friend". I said "who was your uncle?" and it turned out that he was one of the very few people I still remembered from that long time ago, almost 60 years.