1. Behrens R.R False colours: art design and modern camouflage. 2002 Dysart IA:Bobolink Books.
2. Bowditch N.D George de Forest Brush: recollections of a joyous painter. 1970 Peterborough NH:William L. Bauhan.
3. Abbott Thayer and Natural History
4. Cary J The horse's mouth. 1965 New York NY:Time Life Books.
5. Chapman F.M Autobiography of a bird lover. 1933 New York NY:Appleton Century.