For background on how the map was made (and its flaws), see the relevant blog entry.
|Harper||numerous: Ulster generally; Wexford-Kilkenny etc. Anglo-Norman, 13 cent in Leinster. In Ulster the name is English from 17 cent. The harp was not exclusively Irish. SI.|
|Harpur||fairly numerous: Ulster, Wexford etc. The older spelling of Harper.|
DEDs where Harper and a second surname are found together