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| Heron | numerous: Antrim-Down-Tyrone, Connacht. Ir. Ó h-Earáin, earadh, fear. A sept of Oriel; in the west, it may stand for Heffron and Hearne. See also Harron. SI. |
| Herron | Very numerous: Ulster generally. Ir. Ó h-Earáin. See Heron. Also MacElherron, q.v. |
Parishes where Herran and a second surname are both baptised.
This list shows total Herran Roman Catholic baptisms by county.
Click on the county to see detail.