I used to sing a Matilda parody "Waltzing a Bulldog" in South Australia in early 1960s and don't recall any one else singing it.
I don't claim sole authorship - the original Matilda spawned a lot of parodies, and WALKING A BULLDOG sung by one Tom Lewis (1989) is possibly mere coincidence (after all the song is dead easy to parody). It would be nice to think, however, that my version did get passed on. I sang it in various coffee bars in Adelaide, and won a talent competition with it in Bega, NSW, in 1963. I sang it in a very posh English accent, which Aussies (especially in rural areas) always found very amusing. I first heard it sung again at the Faversham (Kent)Folk Club c1978 - the singer was uncertain where he had first heard it.

Thanks to Albert and Dr.Price for nice words about Pigfoot. Our Pontardawe gig went very well.
Good to see Leadfingers still hanging on in there.

                                     Dave Illingworth