Question: Who is Corey Harrison's paternal grandfather?
Sentence (from "Corey Harrison"): Richard Corey Harrison (born April 27, 1983) is an American businessman and reality television personality, known as a cast member of the History TV series "Pawn Stars", which documents his work at the World Famous Gold & Silver Pawn Shop in Las Vegas, which he co-owns with his father, Rick Harrison.
Relevant evidence: Yes