(603) 926-8992

2 Alumni Drive, Hampton, NH 03842



SAU 21 Leadership Team


Meredith Nadeau

Meredith Nadeau has worked in public education for over 25 years and has served in a number of capacities in New Hampshire schools including middle school English teacher, special education teacher, assistant principal, principal, Director of Student Services, and Director of Instruction.  Prior to joining SAU 21, she served as the Superintendent of Schools in SAU #13, Newmarket, and in Cape Elizabeth, Maine.  

Meredith serves on the Governing Board of the American Association of School Administrators (AASA) and is a graduate of their National Superintendent Certification Program.  She was also selected to participate in AASA's National Women's Leadership Cohort in 2019.  Meredith is a long-time member of the Horace Mann League and the Association for Supervision and Curriculum Development (ASCD) and has presented nationally at conferences for ASCD and AASA.  Meredith has worked with the College Board in multiple roles since 2012 including the New England Regional Council, Superintendent's Advisory Council, and National Academic Assembly.  She currently serves as an elected College Board Trustee representing New England and is on the Board of Directors for the New England Staff Development Council (NESDEC).

Meredith was born and raised in New Hampshire and graduated from Merrimack Valley High School.  She holds a B.A. in English from Bowdoin College, an M.Ed. in Special Education and CAGS in Educational Leadership and Supervision from the University of New Hampshire, and an Ed.D. from Boston University. Meredith, her husband, and their two daughters are residents of Lee.

David T. Hobbs, Ed.D.
Assistant Superintendent for Curriculum, Instruction, and Assessment. 

Dr. Hobbs has served SAU 21 in a variety of roles throughout the last decade. In his tenure, he has served as a classroom teacher, department team leader, intern supervisor, technology integrator and curriculum coordinator. Prior to his work at SAU 21, Dr. Hobbs served as adjunct faculty at UNH as a teacher in residence, where he taught in the UNH Graduate School of Education and supervised field experiences throughout the region. 

In 2011, Dr. Hobbs was named as the recipient of the Christa McAuliffe Sabbatical by the New Hampshire Charitable Foundation. The goal of his project was to promote, share and explore digital literacy in New Hampshire classrooms. He conducted 16 case studies throughout New Hampshire, where he documented experiences, tools and innovative teaching methods. 

David has published scholarly articles around innovation and the use of technology. He has presented at a number of formal and professional workshops throughout New England, and has offered professional development for teachers in the area of technology integration. 

David holds a Bachelor of Arts from Colgate University (2000), a Master of Education degree from the University of Montana (2003), and a Doctor of Education degree from the University of Montana (2005).

Mary A. Toomey, Ed.D
Assistant Superintendent of Student Services

Beginning in July 2022, Dr. Toomey joins SAU21 as a career educator, principal, and district administrator from Massachusetts. Most recently, Dr. Toomey served as the Assistant Superintendent for Lawrence Public Schools supporting Curriculum, Instruction, and Assessment for six years before facilitating a redesign for the Office of Student Support Services in 2019. As a former Special Education Teacher and Evaluation Team Facilitator, Dr. Toomey gained valuable experience serving the needs of students identified with exceptional needs. Dr. Toomey has also completed assignments as an adjunct faculty member in the area of Special Education for Salem State University, Simmons College, and American International College.

Dr. Toomey holds a Bachelor of Arts in Special Education and Elementary Education from Rivier College, where she also completed a Master of Education degree in Educational Leadership. Dr. Toomey earned a Certificate of Advanced Graduate Studies from Salem State University with a concentration in Leadership and Innovative Practices. In 2009, Dr. Toomey completed a Doctorate of Education degree in Instructional Leadership at Nova Southeastern University. She has continued to promote and support a philosophy of continuous professional learning for herself and her colleagues.

Dr. Toomey is a strong advocate for students and their families. She holds high expectations to ensure strong academic achievement for all learners through systemic and meaningful professional learning, a focus on improving instructional practice, and a commitment to ensuring the learning environment necessary for promoting 21st century knowledge and innovation skills, including creativity, critical thinking, problem solving, communication, and collaboration.

Matthew C. Ferreira, Ed. D.
Associate Superintendent for Finance and Operations 

Dr. Ferreira began his work as Business Administrator with School Administrative Unit 21 in September 2016.  He brings 13 years of corporate business experience in the enterprise software / technology media and investment services industries, working at Wellesley Information Services and the Blackstone Group, respectively. 

Dr. Ferreira is a member of the New Hampshire Association of Business Officials (NHASBO), New Hampshire School Administrators Association (NHSAA), and Association of Business Officials International (ASBO). He is the recipient of the 2019 Charles Marston Scholarship, named a 2018 ASBO Emerging School Business Leader, and received the 2018 ASBO International Conference Scholarship awarded by NHASBO.

Matt holds a Doctor of Education in Transformative Leadership from the University of New England, a Master of Education degree in School Business Leadership from Wilkes University, and a Bachelor of Science degree in Business Management from Bentley University.

This site provides information using PDF, visit this link to download the Adobe Acrobat Reader DC software.