Board of Trustees

David Spence - President

David Spence is the Baker Botts Chair in Law at the University of Texas School of Law, and Professor of Business, Government & Society at UT-Austin’s McCombs School of Business. He is a graduate of Gettysburg College, and has graduate degrees in political science (Duke University) and law (the University of North Carolina).  David’s research and teaching focuses on government regulation of business, particularly energy and environmental regulation, as well as corporate social responsibility.  David has served as a board member of various youth sports nonprofits, a land trust, and a local chapter of Habitat for Humanity. David and his wife Maria are long-time friends of Austin Montessori School,  and are parents of two sons that graduated from the adolescent community.

Aaron Terwey - Secretary

Aaron Terwey is a corporate attorney at Atrium, where he represents startups and venture capital funds in financing transactions and mergers and acquisitions.  He earned his law degree from the University of Notre Dame and his BA in Political Science from Colgate University.  Aaron was previously the president of the Colgate University Club of DFW and served as a mentor at the Dallas Entrepreneur Center.  Born and raised in Austin, Aaron now lives in San Francisco.  Aaron is the grandson of founder Donna Bryant Goertz and attended Austin Montessori School as a student for 7 years.

Chris Howard

Chris Howard is a former parent at the school, having had three daughters attend through the adolescent level. He has 18 years of experience in various levels of management at Motorola and had operational responsibility for the network processor division there. He has also worked on several high-tech projects as an independent consultant and is a certified tax advisor. He holds BS degrees in both Genetics and Electrical Engineering from the University of Wisconsin-Madison. Chris is an avid traveler, and you can often find him walking the various “caminos” in Spain with his wife Clara.

Grae Baker - Head of School

Grae Baker (Ex Officio) is the Head of School at Austin Montessori School in Austin, TX.  Grae holds an AMI elementary diploma, a B.A. in political science from the University of North Carolina at Chapel Hill, a M.Ed. in Montessori education from Loyola College, and has completed the AMI Orientation to Adolescent Studies.  He began his work in Montessori as a primary classroom assistant. He later served as a guide in upper elementary, 6-12 elementary, and as founding lead teacher of the adolescent program at Omni Montessori School in Charlotte, NC where he went on to serve as Head of School. 

Sandy Bartholome - Business Manager

Sandy Bartholome (Ex Officio) ) is the Business Manager at Austin Montessori School.  She holds a B.S. in Psychology from the University of Wisconsin at Madison, an M.S. in Management Information Systems from the University of Houston – Clear Lake, and a NonProfit Finance Certificate from Rice University’s Glasscock School of Continuing Studies.  Before joining AMS in July 2016, she worked at Chinquapin Preparatory School near Houston for thirty years, the last ten as the school’s business manager.

Maggie Walsh - Vice President

Maggie Walsh, PhD is a long-time AMS parent of two graduates of the adolescent community.  Maggie has her own consulting practice where she works with organizations around the world on learning and development, with a focus on leadership development, change leadership, and strategy execution.  She holds a PhD in cognitive psychology from the University of Texas, where she led two research programs and was published in peer-reviewed scientific journals.  Maggie’s non-profit experience includes volunteering at AMS, board member and Chairperson (10 years) of a large Austin non-profit, and consulting with non-profit organizations on strategy and team-building.

Clara Serrano - Treasurer

Clara Serrano is a parent of three alumni daughters that attended AMS through the adolescent level. Clara worked at NXP Semiconductors for 33 years, managing global technical teams and driving cross-functional corporate initiatives. She served on the board of another independent school for 3 yrs. She holds a BS Electrical Engineering degree from the University of Wisconsin-Madison.

Christina Pesoli

Christina Pesoli has long been associated with the school, first as a student and later as a parent. Christina is a native Austinite and a graduate of St. Edward’s University and Notre Dame Law School. Christina is the daughter of founder Donna Bryant Goertz.

Jenny Carloye

Jenny Carloye is the owner and operator of Inspiring Oaks Ranch wedding business in Wimberley, TX. Jenny holds a BA in Anthropology and History from Linfield College, and she worked as a project manager at Dell Computer for 10 years. She also served as Director of Religious Education at Live Oak Unitarian Universalist Church for 10 years, and she co-developed a curriculum there called “The Peaceful Planet.” Jenny’s three children attended AMS through the Adolescent Community, and she volunteered in a variety of ways during her time as a parent at AMS.

Maria Winchell

Maria Winchell is an emerging artist, and former health services researcher & administrator. She earned her B.A. and M.A. in Sociology from Gettysburg College and North Carolina State University, respectively. While at NCSU she earned a minor in Epidemiology from University of North Carolina School of Public Health. Her career in health research project management has taken her to the University of Rochester School of Medicine, the Duke University School of Medicine, and the University of Texas (both the School of Nursing and the Office of Sponsored Projects). Maria has volunteered as a parent in her children’s public high school and served as a board member of a local chapter of Habitat for Humanity. She is the parent of two Austin Montessori alumni, both of whom began as very young children and continued through the adolescent program at Gaines Creek. Since 2014 she has concentrated full time on developing her art, working in ceramics (sculpture, wheel-throwing and hand-building) and painting (acrylic & oil).