Mark Eaton, American ice hockey player and coach
Mark Andrew Eaton (born May 6, 1977) is an American former professional ice hockey defenseman who played 13 seasons in the National Hockey League (NHL) for the Philadelphia Flyers, Nashville Predators, Pittsburgh Penguins, and New York Islanders. He is the only NHL player to ever come from Delaware. He attended John Dickinson High School in the Wilmington suburbs but played his youth hockey across the state line in Pennsylvania. He is currently the director of player development for the Chicago Blackhawks.