Calico Jenny or anyone else out there. I have my version of the Tumba song. It has a different part in it I think. I learned it at a YWCA camp and have taught the version I know to a Girl Scout Troop and some students I have taught. I have been looking off and on for the origin. When we would sing it, it had more of a native or aboriginal tone.

One part is:

Hail, tomba......tomba ta tomba tey..........
Hail, tomba....tomba ta tomba tey.............
A tomba ta, ta tomba tey. tomba, tomba tomba, ta tomba tey.
Tomba ta tomba tomba to tomba


TOMBA   It is sung in two parts. When both parts come to the end they say TOMBA together. The person leading makes a motion so everyone knows to say TOMBA and stop. It is magical when done well.

I might come back if anyone wants more info.