How big were they in the UK? They were around a bit before my time (I was born in '71!) but I don't recall hearing them much on the radio or TV after they split. I only started listening to Creedence about twelve years ago and that was through a friend. Actually, it may have been "The Big Lebowski" that got me curious. "The Dude" with his "Creedence tapes"!
When I first listened to "Chronicle", I was only vaguely familiar with a couple of songs. "Have You Ever Seen The Rain" was the more familiar for some reason.
Anyhow, glad I found them as their music is wonderful!