Dr. Barnes-Tilley serves as Dean of Academic Affairs for Collin College on the Plano Campus. She is responsible for overseeing the operations of thirteen academic and workforce disciplines. She has worked in higher education for 24 years, including 22 years of teaching and 16 years in administration.
Born in Houston and raised in Brenham, Texas, Mary moved to McKinney in 2017 with her husband, Jeff, and two children, Halen and Kennedy.
Mary holds an Associate’s degree from Blinn College, a BA in Government from The University of Texas at Austin, a Masters in Political Science from Sam Houston State University and a Doctor of Philosophy in Political Science from Texas A&M University (2011).
Mary has spent most of her life serving her community in various capacities, including serving as a city council member and serving with various non-profit organizations.
Mary Barnes-Tilley places a high priority on helping the MCDC continually look for ways to enhance the quality of life in McKinney, to ensure that our city remains a great place to live, work and play.