Griff hails from Concord, New Hampshire and currently attends Bates College in Lewiston, Maine. Growing up he enjoyed watching the high school antics of Cory, Shawn and Topanga in Boy Meets World.

He hopes to someday own a Range Rover and if he had a million dollars he would buy a yacht and travel to Australia. In his last at bat at St. Paul's School, Griff hit a home run, a fitting end to his high school career. Unfortunately his lowest moment in baseball included falling on his face after grounding out.

His favorite player is Red Sox second baseman Dustin Pedroia. When not playing baseball he likes to relax watching movies and listening to Bruce Springsteen's "Waitin' on a Sunny Day.” He is the son of former Major League pitcher, Bob Tewksbury.