Carl Barks/ Barbora Holan Cowles/ Joseph Robert Cowles/ Edward Bergen Rev.
(1)
Carl Barks/ Joseph Robert Cowles/ Barbora Holan Cowles/ Edward Bergen
(1)
Carl Barks/ Joseph Robert Cowles/ Barbora Holan Cowles/ Edward Bergen/ Kim Weston
(1)
Carl Barks/ Michael Barrier/ Edward Bergen/ Lloyd Billingsley/ Barbora Holan Cowles
(1)
Ray John De Aragon/ Joseph Robert Cowles/ Barbora Holan Cowles/ Rosa Maria Calles
(1)