Awesome to hear so many people know and love this song and I am another one whose dad sang this to his kids. I also googled to see what the lyrics were because I really only remember the 1st verse since my dad has been gone many years. Funny how the lyrics evolved from the original with each rendition! Here is one more for the list:

Oh I grew up in the mountains, where all the snakes have legs,
Where the hootowls speak in English and the roosters lay square eggs,
Shaved my beard and mustache the morning I was born,
Then I beat up my old man and drank his rye and corn...

Oh I'm a truthful fellow, they call me truthful Bill,
never told a falsehood and I bet I never will.

Thanks all for the warm fuzzy memories!