Padraig Mac Giolla-Domhnaigh

Early—This name has been assumed by some members of two Irish septs. The first is Loughran in Co. Tyrone, especially in the districts about Dungannon.—O'Luchaireáin.

The second is Maghery (O'Maolmochairghe) which name itself seems to be very rarely found and only in a few districts.

Alphabetical Index of Anglicised Surnames in Ireland

See also Woulfe’s Irish Names and Surnames
and O'Hart's Irish Pedigrees