Family surname and geanology?

I have been looking for information on two surnames Coy and Brickey my grandfather Charles Donald. Coy is from breezewood, pa or around that area he married Virginia Layton. My grandfather Horace Wesley Brickey is from Marion, VA he married Joyce Armstrong from johnson city, tenn Hawkins county. i hit a brick wall lookin for those two names idk if my dads name comes from Mccoy or not any help is much appreciated.