About

Sudbury Extended Day (SED) serves the Sudbury community as an independent, not-for-profit family service offering quality before and after-school childcare for grades K-8, including Early Release Wednesday coverage and select school holiday and vacation week programs. Our program follows the Sudbury Public Schools calendar.

Our Mission

The Mission of Sudbury Extended Day is to provide the children of Sudbury’s working parents with nurturing before and after school programs that offer diverse opportunities for enrichment, exploration and the development of social skills.

Our History

Sudbury Extended Day was established in 1984 by parents needing extended care for their elementary school children after the regular school day ended. SED has grown significantly over the years and continues to serve the Sudbury community as a private, non-profit before and after-school program for grades K through 8.

Our Team

Mari Weldon

Executive Director
978-443-5829 ext. 4
mari@sudburyextendedday.org

A graduate of Emerson College, Mari spent her early career in the advertising industry, working for agencies throughout Boston before opening her own consulting practice in 2007. After ten rewarding years, Mari made the decision to close the practice to focus on family and explore other interests. In the fall of 2017, Mari joined SED as a part-time bookkeeper, which evolved into a full-time role as the Business Manager. She stepped into the Executive Director role at the recommendation of the Board of Directors in February 2022. When not at SED, Mari enjoys time with her family and friends, attending track meets, dance performances, baking, and spending time on the shores of Rhode Island.

Kristen McMillen

Program Director
978-443-5829 ext. 1
kristen@sudburyextendedday.org

Kristen joined SED as Program Director in 2024. She has 12 years of childcare experience, having worked in after-school, camp and youth programs. Most recently, she was the Camp and Youth Program Director of the Hockomock YMCA before deciding to join our team. Kristen has a degree in Biology from Curry College and currently lives in Framingham. When she is not working, Kristen enjoys spending time with family and traveling to new destinations.

Christina Deignan

Business Manager
978-443-5829 ext. 2
christina@sudburyextendedday.org

Christina joined the SED team as a part-time office administrator in the fall of 2021. As she quickly learned more about the organization, she took on additional responsibilities and became the full-time Business Manager in 2022. A graduate of UMASS Amherst, Christina spent her early career at Fidelity Investments, working in operations, project management, and product development before taking time off to raise her three daughters in Sudbury. Christina volunteers with Meals on Wheels in her free time and enjoys spending time with family and friends, golfing, and traveling.

Ellen Cook

Office Administrator
978-443-5829

Ellen joined the SED team as Office Administrator in April, 2024. She is responsible for generating monthly statements, processing schedule change requests, answering prospective and current family questions and preparing contracts, among other things. A graduate of Boston College, Ellen spent the first 15 years of her career in the financial services industry before taking time off to raise her three children in Sudbury. In her free time, Ellen enjoys spending time with friends and family, cooking, golfing and traveling.