Dr. Brennan currently serves as the President of Aquinas High School. He has been in Catholic education for more than 40 years, during which time he has been a teacher, principal, assistant superintendent, and the Superintendent of Catholic Schools for the Diocese of San Bernardino. He has served as an adjunct professor and the Director of St. Mary's College in Moraga's M.A. in Educational Administration program. Dr. Brennan has also worked with the organization, Catholic Educational Services, which provides leadership support to schools in the area of strategic planning. He is the author of 2 book published by NCEA; The Road to Success, and Point to the Future.
Dr. Brennan earned his B.A. in Philosophy from Loras College, an M.S. in Education from Chicago State University, and a Doctorate in Education from the University of San Francisco. He was a member of the Department of Elementary Schools Executive Committee for 11 years, and served on the National Catholic Education Association's Board of Directors for 3 years. Dr. Brennan was also the co-chair of the Board of NCEA during the 2003-2004 school year. Dr. Brennan was honored by the University of San Francisco, School of Education as its "Outstanding Alumnus" in 1998. Since that time, he has been recognized by the Diocese of San Bernardino twice with the St. Thomas Aquinas award in 2004, and the Vision of Hope Awards in 2011. The NCEA has also recognized Dr. Brennan by awarding him with its Presidential Award in 2004 for his service to Catholic education. Dr. Brennan has two children, both of which are alumni of Aquinas High School.