Family History and Genealogy Resources by Surname
McDonnough Surname Origin
(Origin Gaelic) The son of Donnach, the same as Duncan, safe, able to defend.
Source: An Etymological Dictionary of Family and Christian Names With an Essay on their Derivation and Import; Arthur, William, M.A.; New York, NY: Sheldon, Blake, Bleeker & CO., 1857.
McDonnough Surname Meaning and Family Facts
McDonnough Last Name Meaning
Search the FREE Ancestry.com Name Dictionary.
There is more to McDonnough family history than the origin of your surname:
Start your Genealogy to find your personal McDonnough family ancestry. It's easy to get started. Just begin your family tree with what you already know. Learn More.
A McDonnough Family History Thought:
'Every man is a quotation of all his ancestors' -- Ralph Waldo Emerson