Mairead and Sean Clifford dedicated themselves to the establishment of Trinity Hall as co-founders of the school. They began this journey in 2002 and proudly partnered with Victoria and Justin Gmelich to help make the dream of starting an all-girls high school a reality. Mairead and Sean are parents to Brigid (TH '18), Molly (TH '20) and Ciara (TH '22).

A Christian Brothers Academy alumnus, Sean was graduated from Loyola University with a B.A. in Political Science and from Fordham University with an MBA in Finance. He is a Chartered Financial Analyst (CFA) and the Founder and President of the Sons of Ireland.  Sean is the founding Board Chair of Trinity Hall and a current trustee. 

Mairead a graduate of Mount Saint Dominic Academy, earned a B.S. in Nursing from Fairfield University and an M.S. from Columbia University. In 2015,  Mairead was inducted into her high school’s Hall of Fame for her commitment to all-girls education.  She served for six years as Board Secretary of Trinity Hall and is a current trustee.