Mulderrig Family History

from Ó Maoildeirg ‘descendant of Maoilderg’ a personal name meaning ‘red youth’. For this reason Reddington Reid and Rutledge were sometimes adopted as anglicized forms.

However, it appears that Mulderrig began as a re-interpreted variant of Ó Maoilgheiric ‘descendant of the devotee of (Saint) Cyriacus’ a Donegal surname.

Saint Cyriacus was the finder of Christ’s cross according to the Martyrology of Oengus (May 12).