From the Margret and Hans Augusto Rey Papers.; L'Ecole des Loisirs letter in French. Letter in English from H.A. Rey to L’Ecole des Loisirs dated 28 July 1972. Letter in English from H.A. Rey to his American publishers, dated 6 August 1972.
Oral history.; An interview conducted on October 22, 2005 with Wendy Frost. A registered nurse from Findlay, Ohio, Ms. Frost was a volunteer with the American Red Cross in South Mississippi following Hurricane Katrina.