Calif. Families McBride Name History
 
Recorded as MacBride, McBride, Bride, Bryde, the diminutives Bridie, Brydie, and Bridey, this is a Gaelic surname of both Irish and Scottish origins. It derives either from the pre 10th century Irish Mac giolla Brighde or the Scottish Mac gille Brighde, and translates as "The son of the follower of St Bridget", one of the early Christian saints.

Links:
Surname Database: McBride Last Name Origin
McBride Family Crest and History