Here are the details.
https://en.wikipedia.org/wiki/Casey_Jones_(TV_series)
I think I'd be afraid to watch it today. There's something depressing about watching one of your favorite TV shows from your youth and realizing that it wasn't that good after all. So many of those shows from the '50s haven't aged well. I think it was my love for this show that inspired my parents to get me the Lionel General set for Christmas several years later.