De Harpúr
de HARPÚR—XII—Harpur, Harper; Norman 'le Harpour,' 'le Harpur,' i.e., the harper; the name of an old Anglo-Norman family who settled, probably in the 13th century, in Co. Wexford, where they are still numerous. The 'Harpers,' as distinct from the 'Harpurs,' are later settlers.
Alphabetical Index to Irish Surnames