Thanks, John. I don't have a copy of "Little Pet". The info I have about the relationship between the two is as follows.Championship winner James Brown had recorded The Bluebell Polka, under the title Little Pet Polka, nearly half a century earlier, but it was Shand's more restrained and emaciated version that had sold 100,000 copies by early 1956 (page 99), eventually, it has been claimed, selling ten times that amount.
From here
Cheers!
Ian