Flanders gives 12 versions from Vt, Me and NY and some interesting points of comparison in the intro, some referring to Belden's study.
Mainly re certain stanzas not present in American versions.

Are you using the Roud Index to identify texts you haven't got access to?

Are you also keeping a weather eye on Canadian versions? I have occasionally noted similarities between some Me and Ny ballads and Nova Scotia and other Maritimes. Cazden/Catskills is good for this info, but surprisingly they don't have a version of 73.