Just so; that will be where he or she got them, I expect. See the other, more recent, thread for more detailed information; this one was long-forgotten until somebody stumbled across it a little earlier on today. (Note: the second link above is to a completely unrelated song that happens to mention Salisbury Plain).

Anne's text was, I expect, originally taken from Ingledew's The Ballads and Songs of Yorkshire (1860), where it appears as 'Scarboro' Sands', apparently transcribed from a broadside copy in the editor's possession. There are some minor differences of wording. I don't find the song in Roud's listings for ED&S, but that may be an oversight.