Hi Joe;

I remember a very similar rhyme that my mother's friend sang to us once one Halloween, it scared the bejesus out of me at the time. But the opening lines were slightly different I think and went something like;

There was an old woman, old and thin
Who waited by a churchyard door
And watched 4 men carry a dead man in,
Ooooh etc.

I don't remember anymore and may've got the above wrong due to the passage of time. Did you have any luck in finding the rest of your rhyme?

JfJ