According to dean :
Is there an original Lumberjack Song? (I'm a lumberjack and I'm ok, I
sleep all nigfht and I work all day...). I only heard the Monty Python
version

The song does predate Monty Python, and probably in quite a number
of versions. I do remember an old folk tune rather similar to the
Monty Python tune/lyrics, but the Monty Python version has so overwhelmed
search engines, that it's impossible to find.
--
Chris Lewis, Una confibula non set est
It's not just anyone who gets a Starship Cruiser class named after them.