The name Kerrick/Karrick is originally spelled Carrick. It depends on where one lived, England, Ireland or originally Scotland. Not because of one branch of family being richer than the other. The name is a locational Surname of Carrick Co. Ayrshire Scotland. The clans of Kennedy are with in this family of the Ancient Earls and Kings of Scotland and William 1 the Conqurer. Taking from Robets J Karrick of Ohio, a researcher of 70 years:
The orginial surname KARRICK is from the Rare Ancient Royal Family of Duncan de Carrick ,the 1st Earl of Carrick and Regent for King of Scotland,of Ayrshire,Scotland. He was a Descendant of a long Line of Ancient Irish and Scottish Kings,and the Norman Conqueror , William I, King of England . Earl Duncan married Avelina, daughter of Allen FitzWalter and had sons; Neil 2nd Earl of Carrick,whose daughter Margory married Robert Bruce.The other son Nicholaus (or Colin),Lord of Carrick,who was in Fife ca 1280 had changed his name to Nigel Karriak and married Marotta ,daughter of Robert Rossyn. Nigel had a son Robert Nigel de Karrik,who was mentioned a Maistenton Charter at Newbottel ,Scotland. The search continues for the KARRICK Surname Descendants under the spelling variants of Carrick,Karrack,Kerrick,Kerrich ,etc. There are indications that the Karricks or Carricks where in Glouschester England when the Family Coat of Arms was developed . Also there was a group of Karricks lived and died in the Pale and Dublin ,Ireland in the 1600's The first migrant to North America was a Edward Kerrick (Karrick) to Virgina in 1671 ,who is though to be the Progenitor of the Carrick/Karrick/ Kerrick Families of Charles County Maryland.