 His great-grandfather, John F. Shafroth, was a former member of the US House, US Senate, and the Governor of Colorado, and best remembered as the author of the Antiquities Act.He was also an author of the Jones Shafroth Act, which gave Puerto Ricans US citizenship.In 1980, Shafroth received a Bachelor of Arts degree in Political Science and Environmental Studies from the University of California at Santa Barbara, followed by a Master of Public Administration from Harvard University's John F. Kennedy School of Government in 1991.