In 2002, Mary opened LifeWays Early Childhood Center in Milwaukee where she served as director for 13 years. Mary is an alumni of the University of Wisconsin-Madison. She is a traveling teacher and Training Coordinator for LifeWays North America. She has taught parents and childcare teachers all over the U.S. and internationally. In 2010, Mary co-authored Home Away From Home: LifeWays Care of Children and Families with Cynthia Aldinger, and in 2018 she authored Observing Young Children: A Tool for Meaningful Assessment. Most recently, Mary started a non-profit farm education program at Paradise Farm in West Bend, where she and her colleagues provide outdoor, farm-based education to children and adults.