This site has exploded with lots of interesting posts recently. I don't mind if it goes slightly off topic at times because it sometimes sparks other useful bits of information that is relevent.
I lived near a bowling alley in the mid sixties and we used it like a youth club/coffee bar and played a bit of ten pin. I knew Mods that wore the bowling shoes in the same way that trainers are worn today. You could hire the bowling shoes and risk a foot infection but some of us bought the bowling shoes and we wore them away from the bowling alley.
In the mid '70's some of my younger mates started wearing bowling shirts but I stuck to the BD's.