The Bodleian examples of "Sporting Hero" or "Whiskey in the Jar" have Mulberry Mountain. Neither it nor Kilgarry Mt. are American. Cork and Kilkenny are mentioned in the broadsides. Is there a Melbrow town? (none in America, but it is a surname from the British Isles and there would be Melbrows anywhere members of that family settled).

There is no reason for any of the names in the song to have significance with regard to the song's origin.