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Mary - The ArcMary 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 - The ArcLacie 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.

Employee Spotlight – Lacie Stiewing



Ann Marie - The ArcAnn 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!

Employee Spotlight – Ann Marie Sanders



The Arc - DianaMegan Glisan – Bookkeeper

Megan is a 5th generation Texan and was born here in Austin. Texas.  She has 15 years of vast accounting knowledge and experience that spans across nonprofit, public and private organizations.  Megan obtained a Bachelors degree in Accounting from Texas State University and is currently in process of sitting for the Texas CPA exam.  She recently began working for The Arc in 2020 providing accounting support and found her passion serving the nonprofit community and helping those in need.  In her free time, Megan enjoys traveling, seeing live music with her husband, and hiking with her dogs, around greenspace in Austin and Central Texas.

Employee Spotlight – Megan Glisan



Bethany - The ArcBethany Walton – Director of CLASS

Bethany was born in Chicago, Illinois, but moved to Austin, Texas over 25 years ago and considers herself a Texan through and through. Throughout her college years, Bethany worked as a nanny for two families with children diagnosed with intellectual and developmental disabilities. It was during this time that Bethany found her calling and knew she wanted to work the I/DD population. Soon after graduating from Texas State University with a Bachelor’s Degree in Psychology, Bethany started as a CLASS Case Manager at The Arc of the Capital Area. During this time, Bethany participated in advocating at the Capitol during legislative sessions, and her passion for the work we do and the individuals we serve grew. Since then she has continued to be an activist in our community, while training case managers on the key elements of successful service delivery in the CLASS program.  Bethany leads our team of 12 CLASS case managers serving individuals and their families in Central Texas.  In her free time, she enjoys traveling, painting, and hiking the greenbelt with her dogs and husband.

Employee Spotlight – Bethany Walton



Allison - The ArcAllison Abramo – Director, Neurodiverse Hiring Initiatives

Allison first began her career as a special education teacher in San Antonio after receiving her Master’s in Teaching degree from Trinity University in San Antonio, TX. Following a desire for increased involvement with the wider community, she left the school system to move into community based services for adults with disabilities. Allison started at The Arc of the Capital Area as a CLASS case manager, and when The Arc started a program for employment services, she was brought over to lead its development and growth. Allison is passionate about neurodiversity and is excited to continue to support competitive employment for individuals with intellectual and developmental disabilities. Outside of work, she enjoys cooking, gardening, and hiking around Texas.

Employee Spotlight – Allison Abramo



Amber - The ArcAmber Nelson – Director of Arts and Education

Amber has an extensive background in non-profit program development and management. With over a decade of directly developing, planning and serving individuals in need through compassionate programing. Amber studied at the College of New Jersey pursuing her career in nonprofit management and is currently working on a degree in organization leadership. Her passion for developing community programs has grown as she has created and developed programs that include art education for urban youth, camps serving low income families, and education programs for individuals experiencing intellectual and developmental disabilities.

Employee Spotlight – Amber Nelson



The Arc - DianaDiana K Trevino, LMSW – Director of Contracted Services & Quality

Diana K Trevino has 18 years’ experience working with individuals with intellectual and developmental disabilities (IDD). She holds a Master’s in Social Work from the University of Hawaii Manoa, with a concentration in Mental Health. Her bachelors is in Kinesiology from the University of North Texas with a minor in health promotion. During her years’ experience, she has worked in IDD crisis programming, residential programming, early intervention,  as a medical social worker, an ER social worker and a psychiatric social worker. Diana has been with The Arc of the Capital Area since 2013 in various management positions and is currently the Director of Contracted Services and Quality Assurance.

Employee Spotlight – Diana K Trevino