Burkert, Nancy Ekholm (Personal Name)

Andersen, H. C. The nightingale, 1965.

Wikipedia, via WWW, Feb. 8, 2010 (American artist and illustrator; born Feb. 16, 1933, in Sterling, Colorado; lives in Wisconsin with husband and family)

We too were children, Mr. Barrie, via WWW, Feb. 8, 2012 (majored in art at the University of Wisconsin, Madison)