Recent scholars do not credit the claim that Charteris created the story. Propaganda historian Randal Marlin says “the real source for the story is to be found in the pages of the Northcliffe press”, referring to newspapers owned by Lord Northcliffe. Adrian Gregory presumes that the story originated from rumours that had been circulating for years, and that it was not "invented" by any individual: “The corpse-rendering factory was not the invention of a diabolical propagandist; it was a popular folktale, an ‘urban myth’, which had been circulated for months before it received any official notice.”