groff is married has two children. his family has lived in vermont for generations and their roots there can be traced back to the 18th century. his great-grandfather was the photographer edmund homer royce of st. albans. his 3rd great-grandfather was vermont congressman and chief justice homer elihu royce and his 4th great-uncle was vermont governor and chief justice stephen royce. his 5th great-grandfather was major steven royce who was a delegate to the convention that signed the 1774 dorset accords which led to an independent vermont republic and future statehood. groff speaks tagalog and french and is a triathlete.