the Pufferbelly mystery solved

Finally, I've learned something I've been wondering about for several months now.  It turns out that the Pufferbelly Trail near my home got its name from the fact that it;s located on an old abandoned railroad bed for most of its length and in times past there was a big old steam engine that was referred to as a Pufferbelly.  So now I know.  I was telling a friend this interesting tidbit earlier this evening and she told me that there was a song about the Pufferbelly that was popular when we were kids.  I do not remember this at all.  Maybe it was only popular in Ohio where she grew up or maybe it was a song her mother sang to her.  My mother sang "yes, we have no bananas" and "poor little robin" but never a song about pufferbellies.  I may have to do some research.