Board of Directors

Scroll down for meeting agendas and minutes.

Board of Directors meetings are held on the second Tuesday every other month.

More information on the Maine Charter School Commission can be found here.

Peter Montano – Treasurer

Mr. Montano holds a B.S. in Accounting from St. John’s University and is a Certified Public Accountant in Maine, New York, Florida, Louisiana and Colorado. He is a Director at Macpage LLC, and has had a life-long interest in supporting nonprofit organizations; as such, Mr. Montano has been providing audit, consulting, and tax services to nonprofit organizations and venture funds for over 30 years. 

He is active in various associations, and has spoken at conferences across Maine on topics affecting nonprofit organizations and providing technical seminars on financial management. Mr. Montano works closely with Board members and management of various nonprofit organizations to assist them in implementing best practices. He is also a member of the Audit Committee for the Maine Community Foundation and is currently a member of the Advisory Committee for the Maine Association of Nonprofits after serving as their Treasurer for six years.

Ruth Dean

Ms. Dean is the co-owner of Circa Guitars in South Portland, Maine. She attended University of Maryland in Munich, Germany and later received her BA in Psychology from Evergreen State College in Washington State. She worked as a counselor in a program for pregnant incarcerated teens, the first of its kind in the US. She also has extensive experience working in the fields of domestic violence and sexual assault prevention. She earned her RN degree in 1997. She served on the Board of Directors for Birthwise Midwifery School from 1999 to 2007. She also served on the Board of Casco Public Library from 2004 to 2010. Ruth has served on the School Council of the French School of Maine in Freeport since 2010. 

Ms. Dean was one of the founders of Friends of Baxter Academy, an organization created in May 2012 to offer support for the founding and start-up of BA. She has also served on the school’s Advisory Board. For the past fourteen years, Ms. Dean has been active as a homeschool mother. Her family lives in South Portland.

Christian Sparling currently works as a Senior Project Director at the Relay Graduate School of Education, a revolutionary educator-training program for in-service urban teachers to attain certification and master’s degrees. 

Prior to moving to Maine, Mr. Sparling worked at Uncommon Schools as Associate Chief Operating Officer serving North Star Academy in Newark, NJ. As ACOO, Mr. Sparling managed K-12 operations for North Star’s 9 schools, 3,000 students and 300 staff members. He directly managed all elementary school Directors of Operations and several regional support staff while also completing projects to improve school security, streamline interim assessment tools, and implement operations inspections across all Uncommon Schools. Mr. Sparling also served on the Policy Development Committee to implement a universal enrollment system across all K-12 district and charter schools in Newark. 

Mr. Sparling began his school leadership at North Star Academy in 2007 as founding Director of Operations of North Star Academy Vailsburg Elementary, co-leading North Star’s first elementary school to achieve the highest NJASK state test results of all 1,200 elementary schools in New Jersey in its first year at scale. 

Prior to becoming a school leader, Mr. Sparling spent three years at Teach for America recruiting college students to join the cause. He began his career in education as a 2001 Teach For America corps member teaching 1st and 2nd grade in the South Bronx. Mr. Sparling is a graduate of Columbia University and originally hails from Detroit, MI.

Christian Sparling - Vice Chair

Patti Oldmixon is a Senior Group Manager at IDEXX Laboratories, in Westbrook, Maine. She is responsible for the Business Operations Organization. Patti’s work includes all aspects of supporting a 300-plus Sales and Service team throughout North America. Her team is responsible for financial analysis of sales opportunities, incentive compensation and goaling, as well as operational and executive dashboards. 

Patti serves on the Board of Advisors for the Crown of Maine Organic Cooperative, a distribution organization for Maine grown and organic products. She provides sales and marketing guidance, as well as input on organizational structure. Patti also serves on the Chinese and American Friendship Association of Maine (CAFAM) Board of Directors and the CAFAM Chinese School Steering Committee. CAFAM provides forums and outreach that promotes cultural interchanges between the US and China. Patti has served as the annual Chinese New Year Celebration chairperson for over 7 years. This event is often attended by over 700 people, and has included a Chinese School dance performance, crafts for children, Chinese food and multiple speakers. 

Prior to her work at IDEXX, Patti worked in the telecommunications industry with roles of increasing responsibility in customer service, finance and corporate sales. Patti earned her B.S. in finance from Bentley University and her MBA from Babson College. Patti and her family live in Cape Elizabeth, Maine.



Patti Oldmixon - Board Chair











In Thorn Dickinson’s role as Vice President of Business Development at Avangrid,  he responsible for creating and supporting growth initiatives in sustainable energy.  Thorn has worked in the energy industry for 30 years.  Prior to his current position, he worked in transmission and distribution operations, resource planning, rates and regulatory, strategic planning, investor relations and risk management. In these roles, Thorn worked on integrated resource plans, clean-air compliance, industry restructuring, the Maine Power Reliability Project, the sale and acquisition of numerous businesses and most recently renewable energy projects. Thorn earned an MBA from Syracuse University and a B.S. in electrical engineering from Union College.


Thorn has a lifelong passion for education and has most recently supported efforts at Maine Mentoring Partnership and Jobs for Maine’s Grads.  He and his wife live in Brunswick Maine.

Thorn Dickinson