North American analogues in general
By Henrik Thiil Nielsen, 2014-08-21. Revised by Henrik Thiil Nielsen, 2017-05-06.
- Lawrence, William Witherle. Medieval Story and the Beginnings of the Social Ideals of English-Speaking People (New York, 1911); pp. 171-75: English ballads arose in a social context that had many similarities with that of the North American cowboy songs, a view criticized by Louise Pound, see below.
- Pound, Louise. 'The Southwestern Cowboy Songs and the English and Scottish Popular Ballads', Modern Philology, vol. XI (1913), pp. 195-207. Also see William Witherle Lawrence above.