St. Thomas Aquinas High School is committed to ensuring that the Lux In Tenebris tradition- in both form and function- continues for generations to come.

Donors to St. Thomas Aquinas give for many reasons and their generosity has an immense impact on the STA community. Our charge is to be good stewards of all donations and contributions, both financial and in-kind, such that our school community can continue to empower its students to grow as learners and leaders.

Paul C. Marquis, Principal

Dr. Daniel M. Richer, Dean of Admission & Advancement

Sarah McCluskey, Assistant Director of Advancement 


Paul C. Marquis, Principal

As Principal, Paul serves as the Chief Academic Officer and directly oversees all matters of the faculty, curriculum, student development and scheduling of the School.

Paul joined the St. Thomas Aquinas Chemistry and Physics faculty in 2016 and was named Principal in 2020.  He has over 25 years of teaching experience and has held positions in Maine and New Hampshire.   A highly acclaimed former high school coach, Paul has earned over 200 victories in basketball and 100 wins in soccer.  He also has successful coaching experiences in baseball, softball and tennis.  He guided his teams to state, regional and conference championships along with numerous sportsmanship awards.

Along with noted achievements in bringing innovative new technology into the classroom, Paul has served in the Knights of Columbus as a Deputy Grand Knight and Treasurer. 

Paul holds his academic degree in Biochemistry from the University of Maine, also attending Campbell University and the University of South Carolina.   


Dr. Daniel M. Richer, Ed.D, Dean of Admission & Advancement

Danny Richer oversees all matters of enrollment and advancement, including admission, financial aid, fundraising and retention.

Dr. Richer has 20 years of experience in higher education.  Prior to St. Thomas Aquinas, he worked at Providence College, the University of New Hampshire, Saint Anselm College, Northern Essex Community College, and West Virginia University.

He earned a B.A. in Political Science with a minor in French from Providence College, a M.A. in Organization and Leadership from the University of San Francisco, and a Doctorate of Education in Educational Administration from the University of Nebraska.  His research interests include the college choice process, institutional mission statements, and Catholic higher education. 


Sarah McCluskey, J.D., Assistant Director of Advancement 

Sarah McCluskey joined the Advancement team in November 2021 and helps to direct the school’s fundraising, development, and alumni relations efforts.

Prior to joining the team, she spent much of her career with various United Ways across New England, holding positions of increasing responsibility in Development, grant-making, and Marketing. Most recently, she served as Senior Director of Donor Relations at Granite United Way, where she cultivated, stewarded, and solicited major gifts. Sarah also previously served as a personal injury attorney, advocating for the rights of plaintiffs.

Sarah earned a B.A. in Political Science and Spanish from Fairfield University and a J.D. from New England Law Boston. She is licensed to practice law in CT, MA, and NH. While at New England Law Boston, Sarah served as an Editor of the New England Law Review.