Our Team

 Dr. Mary on the set of We Are Austin.Mary Van Haneghan, Ed. D. – Chief Executive Officer

Dr. Mary started her career in the human services field two decades ago as a direct service professional. During her tenure she has worked across the country in various capacities: day habilitation; residential habilitation; post-secondary education; transitional services; case management; supported employment; behavioral health; nursing and early intervention. She received her doctorate in education, with emphasis in higher education and adult learning, from Walden University in 2012; a master of science degree, with emphasis in adult education and literacy, from Buffalo State College in 2007; and in 2006 she received a bachelor of arts degree, with emphasis in business management, from the University of Buffalo. Her academic research has ranged from historical institutional models to the benefits of post-secondary.

Dr. Mary has been recognized for her accomplishments and contributions through her work on behalf of people who experience intellectual disabilities and their families at a national level. In 2015 Dr. Mary was the National Conference of Executives (NCE) of The Arc of the United States “Rising Star Award” recipient and in 2017 received the award for “Program Innovation”.  In 2019 Dr. Mary was appointed to the National Conference of Executives (NCE) of The Arc of the United States Steering Committee.

Dr. Mary is involved in the Austin community through the Aging and Disability Resource Center of the Capital Area Steering  Committee, the Intellectual & Developmental Disabilities Alliance of Central Texas, Williamson County Institute for Excellence in Nonprofits, Candlelight Ranch, Divine Canines and One Voice Central Texas. In addition, Dr. Mary was a finalist for Austin Under 40 in Nonprofit Service in 2017 and in 2018.



Lacie Stiewing – Grants and Development Manager

With an extensive background in non-profit program development and for-profit project management, Lacie brings conceptual and methodical thinking to The Arc’s Grant and Development Program. Over two decades of experience directing, planning, implementing, and expanding programs provides the foundation of her background.

Recent experiences include working with a team to film international scientists converging on the sea ice in Utqiaġvik, Alaska; Providing sole staff support for an artist who experiences disabilities while filming his story on location in Phoenix, Arizona; Leading successful fundraising campaigns for multiple non-profits in San Francisco, California; Collaborating with MIT engineers and UAF marine biologists in Kachemak Bay, Alaska, Lacie is a multifaceted team player with a vision of the bigger picture. Her academic pursuits include an MFA with an emphasis in Sculpture and Computer Art from the University of Alaska Fairbanks, BS in Speech Communication and BFA in studio art from Northern Arizona University in Flagstaff, Arizona. When Lacie is not writing grants or helping with events, she enjoys biking with her dog pack.




Ann Marie Sanders – Donor Relations Manager

Ann Marie comes to Austin from upstate New York, bringing more than 30 years of fundraising, marketing, and administrative experience primarily with non-profit professional theatres. In addition, she was Associate Producer of the 25th Anniversary National Tour of Ain’t Misbehavin’ which traveled to 80 cities in 35 states. She earned a Bachelors degree in Music Business from State University of New York, College at Fredonia with a double concentration in Arts Administration and Communications/Public Relations. Much of her passion for community service-based non-profits stems from her two-year experience working and traveling worldwide with the international performing group Up With People. She looks forward to getting to know and love everything about Austin!