Question: Who is the granddaughter of the business magnate who founded the food company Mars, Incorporated?
Sentence (from "Castleberry's Food Company"): Castleberry's Food Company is an Augusta, Georgia-based canned food company founded in the 1920s by Clement Stewart Castleberry with the help of his father Clement Lamar Castleberry and closed in March 2008 by the United States Food and Drug Administration until Hanover Foods bought the rights to Castleberry's food and name.
Relevant evidence: No