Gregory script credit from Bob Gregory's collection of payment remittance invoices from Western Printing & Lithography Co., invoice dated April 23, 1959.
Art submitted on May 26, 1959. Barks caricatured himself on a wanted poster on page 13 of this story. Quote from Barks: "I did the drawings and a did a great deal of rewriting and polishing on the dialogue of the script, which was sent to me by the office."--June 9, 1968, letter to Michael Barrier. Notes and synopsis by Michael Barrier from "Carl Barks and the Art of the Comic Book" (M. Lilien, 1982).