Auld
Auld—MAC CHATHAIL.—Auld is a later anglicised form of McAuld, and other forms of the name are Megall, McGall, M'Call, McAll, and McHall. See Hall.
Alphabetical Index of Anglicised Surnames in Ireland
See also Woulfe’s Irish Names and Surnames
… and O'Hart's Irish Pedigrees