Quite a few liberties were taken in bringing the book to the screen. In the original story, the two Dalmatians who ran across England to rescue their pups were named Pongo and Missis Pongo, or just plain Missis; Perdita was a stray whose own puppies had been sold, and who was taken into the household to help wet nurse Missis' fifteen puppies. In the film, their owners are named Roger and Anita Radcliffe; in the book, they're Mr. and Mrs. Dearly, no first names given. The book also features two Nannies (Nanny Cook and Nanny Butler) to the film's one; Jasper appears under the same name in both versions, but Saul is changed to Horace for the film; and Tib, the book's heroic gray tabby female, is transformed into an orange-colored tom. However, the film was not the first time the story had undergone changes; "The Hundred and One Dalmatians" first appeared as a serial in Ladies' Home Journal, under the title "The Great Dog Robbery".
