It is possible that your ancestor came from Wales. I do know that a Robert Hicks came over from England in 1621 to Plymouth, MA. His wife and daughter Phebe followed him in 1623 on the ship "Ann" (I think). Use the website www.ancestry.com
and use the search bar for this name. You know, I think that I remember an entry in Comptons Encyclopedia (online) on a William Hicks. I have just started researching the names Hicks, Cowick, Cato, Starnes, etc... My Hicks clan is from SC and NC. I have information on other Hicks from 1600's and later, if you are interested.