After graduating from Central, Henry P. continued his formal education at St. Anselm College and at Catholic University in Washington DC where he graduated in 1938. In his senior year, he was awarded the J.K. Mullen scholarship for outstanding academic achievement. He furthered his studies at the Catholic University Law School and received his law degree in 1941 just before the outbreak of W.W.II. Drafted as a private in 1941, Henry P. earned the rank of Major in the US Air Corps by the time of his honorable discharge in 1945. He served overseas in England, France, and Germany. Upon his return to Manchester in 1946, he opened a law office and practiced for fifty-one years. Henry P. served on the Manchester Housing Authority (1946-47), as City Attorney (1947–48) and as a member of the School Committee for several years. He served in the NH Legislature (1948-49), in the State Senate (1962-63), and was elected a delegate to the NH State Constitutional Convention. A member of the Notre Dame College Board of Directors for fifteen years, he offered probono legal service to the college and the Order of the Sisters of the Holy Cross. He received an honorary Doctor of Laws from the college in 1983. Henry P. was married to the late Mary J. McCaffrey, his partner in community and church matters for many years. They raised four daughters - Mary, Ann, Grace, and Kathleen - who have earned a total of twelve academic degrees.