Henry has dedicated much of his life to the pursuit of mathematics in a variety of manners. He has been a department head at John Diefenbaker Secondary School since 1992, a councilor for the GVMA and a Technology for All Students instructor for Texas Instruments. He has been continuously involved with the EQAO, starting as a scorer and currently presiding as a section leader. He has also had memberships in the OAME and the National Council of Teachers in Mathematics and has facilitated training sessions for Bluewater math teachers.
Henry and his wife Karen have two children, Paul and Krista. Henry is very active in his church community, serving on various church boards and currently facilitating a bible study group. In his seemingly minimal spare time, he enjoys swimming, archery and canoeing. Most uniquely, however, he raises alpacas (he currently has 34) in preparation for retirement, and has been a director of Alpaca Ontario.