Quote:
"[Caroline Leaf] worked freelance while living in Cambridge [Massachusetts] and made How Beaver Stole Fire (1972) for a St. Louis company; however, they disagreed when the company wanted to alter the animation."
-- Nichola Dobson

Source:
Dobson, Nichola. Historical Dictionary of Animation and Cartoons. Lanham, Md.: Scarecrow Press, 2010. (pp. 121-122)