[2] After retiring from teaching applied and professional ethics, he became the provost of the University of Vermont, later serving as interim president.
[3] His family moved to York, Pennsylvania in 1929 when he was four years old, where Hennessey attended public schools and then entered Princeton University in 1941.
degree in economics and social institutions, magna cum laude, with election to Phi Beta Kappa.
His first wife, Jean Lande, was an international environmental commissioner and academic program manager, and she was a leading New Hampshire Democratic strategist and activist.
In February 2006, he married Madeleine Kunin, former Governor of Vermont, Ambassador to Switzerland, professor and public commentator on issues of social justice and the environment.