Pettengill, R. W. (1924). Letters from America, 1776-1779: Being letters of Brunswick, Hessian, and Waldeck officers with the British armies during the revolution. Boston, New York: Houghton Mifflin Co..

Pettengill, Ray Waldron. Letters From America, 1776-1779: Being Letters of Brunswick, Hessian, and Waldeck Officers With the British Armies During the Revolution. Boston, New York: Houghton Mifflin Co., 1924.

Pettengill, Ray Waldron. Letters From America, 1776-1779: Being Letters of Brunswick, Hessian, and Waldeck Officers With the British Armies During the Revolution. Boston, New York: Houghton Mifflin Co., 1924.