Just to expand for a moment on Bruce's comment, An Acre of Land belongs to the Elfin Knight family of songs, which professor Child assigned his number #2, so a search made through the "Digitrad and Forum Search" on the main Forum page for child #2 would return quite a few examples.  The one Sorcha pointed to has been wrongly assigned to number #46; for mysterious reasons, some people seem unable to distinguish between a series of "impossible" tasks (#2) and a series of "impossible" riddles (#46, "Captain Wedderburn's Courtship").  That's by the by, of course.  The best-known version of "An Acre of Land" is probably the one from the repertoire of the Copper family of Rottingdean in Sussex, which Garry also has on his website, here:  Heigh Ho Sing Ivy

Malcolm