Timeline question

[Phoenix]

As much as I wish all the current Smile discussions had stayed under one thread topic, I'm starting yet another one, in hopes of finding a quick answer and not having my question get lost deep in the recesses of some other thread.

Recently, I misremembered that the "Bag Of Tricks"/"Heroes And Villains Intro" was always the beginning of "Mrs. O'Leary's Cow" and was only associated with "Heroes And Villains" because of a labeling mistake.  Someone quickly (and correctly) reminded me it was the other way around so I'm now left wondering. 

How/when/why did it become associated with "Fire"?
How long has it officially been part of it?  Long before BWPS, correct?

Thanks in advance.

[buddhahat]

As far as I'm aware David Leaf thought the two pieces belonged together and that's where the idea started, but I can't tell you when he made that connection - maybe around the the time Mark Linnett was going through the tapes in the 80s?

..and don't apologise. As far as I'm concerned the more Smile threads, the better!