I learned the lyrics in the summer of 1944 when I was 13 from two locals - in Shorewood (suburb of Milwaukee)Milwaukee was a destination for Germans 100 years before and had a great population of saloons.

Once there was a Dutchman. His name was Johnny Rebec.
He was a dealer in sausages and sauerkraut and speck.
One day, he invented a wonderful sausage machine
That turned cats and dogs into little sausages.

Chorus:
Oh Mr. Johnny Rebec, how could you be so mean - for inventing that machine?
Now all the neighbor's cats and dogs will never more be seen;
they all were ground to sausages from Johnny Rebec's machine.

Verse #2

One day a boy came walking - a-walking in the store.
He bought a pound of sausages and laid them on the floor.
The boy began to whistle, he whistled a merry tune;
And all the little sausages went waltzing - a-waltzing around the room.

Verse #3
One day the machine went on the blink; the damn thing wouldn't go.
So, Johnny crawled in the machine to see what made it so.      
His wife she had a nightmare came a-walking in her sleep.
Gave the crank a hellava yank, and Johnny Rebec was MEAT!

Note: Sung in a rollicking roll. Lived all over the Midwest and went to summer camp with boys from all over the Midwest. Yet never heard it elsewhere. Later, I though it was an ethnic German song. Definitely not Yiddish - working class German from another era.

It has been fun reading the threads.

Definitely learned Rebec - not some other variation.