Kellen has been at Saint Mary’s Hall since 2018. Her artistic work has been exhibited nationally and internationally, and she was a finalist in the experimental category of The Art & Olfaction Awards. Her previous teaching experience includes Texas State University, Texas Military Institute, and The Children’s Shelter of San Antonio. Kellen holds two Bachelors of Fine Arts degrees in Sculpture and Photography from Texas State University and a Master of Fine Arts in Interdisciplinary Arts and Media from Columbia College Chicago.