(Click above for the family tree)
Blazon of arms: Argent, a fess quarterly sable and or between three trefoils slipped vert.
Crest: A dexter hand grasping a sword proper.
Motto: Semper paratus. ( Always ready.)

The Irish surname  McCready is the anglicized form of the Irish "Mac Riada", i.e.. Mac Ready, the initial "c" of Mac Ready being intrusive. This name is patronymic in origin, belonging to that category of names derived from the first name of a father or other ancestor. In this instance, the name simply denotes "the son ("Mac") of Riada", from the Old Gaelic personal name. It is thought that this name is most probably derived from the Irish "ri", which signifies "royal".
   In Ireland this name is found mainly in County Donegal, and in the three northeastern counties of the province of Ulster, where it is counted in relatively large numbers. In ancient times, the original family that bore this name held lands in Donegal. They were an erenagh family (hereditary lay abbots) in the barony of Raphoe, and thus had great power and influence in their own territory. One of the most notable members of this family was Father Donogh Mac Reidy (also called Mac Reedy) of Coleraine, Dean of Derry, who in 1608 suffered martyrdom by being pulled asunder by four horses. Monsignor Charles Mac Cready, Rector of the Church of the Holy Cross, New York, in the late 1800's, was of the same stock.
   In County Derry it has been found that in some cases, however, Mac Cready has been used as an abbreviated form of Mac Conready, alias MacAready, the anglicized form of the Gaelic "Mac Conriada", meaning "the son of Conriada".