Looking back upthread, I see that Graves evidently did get his words to fit Bunting's tune, but some of the lines do seem to include an "extra" measure.

The lyrics commencing "Over the hills I went one day" were written by E. Milligan to the "Foggy Dew" tune and published in 1910. Canon O'Neil may have had them in mine when writing "As down the glen I went one day," to the same tune, a few hears later. (Milligan's original words began "A-down the hills....")

Milligan's song has been collected a few times in shortened, rather altered form in the United States.