In his 1951 work The Great Days of Piracy, author George Woodbury wrote that Johnson is "obviously a pseudonym", continuing "one cannot help suspecting that he may have been a pirate himself."
Na súa obra de 1951 titulada The Great Days of Piracy, o autor George Woodbury escribiu que Johnson era "obviamente un pseudónimo", indicando que "un non pode evitar sospeitar que puidera ter sido un pirata el mesmo".