KEEL, William D. From Refugee of 1848 to American Superpatriot: “Colonel” Fred Buehrle—the Official Cannoneer of the State of Missouri. Yearbook of German-American Studies, [S. l.], v. 51, p. 109–134, 2022. DOI: 10.17161/ygas.v51i.18287. Disponível em: https://journals.ku.edu/ygas/article/view/18287. Acesso em: 13 apr. 2025.