Tim Couzens: Murder at Morija: Faith, Mystery, and Tragedy on an African mission. University of Virginia Press, Charlottesville 2005, ISBN 0813925290, S. 248–249. Auszüge bei books.google.de
Elizabeth Eldredge: Power in Colonial Africa. Conflict and Discourse in Lesotho, 1870–1969. University of Wisconsin Press, Madison 2007, ISBN 9780299223731, S. 139. Auszüge bei books.google.de