Sandi was born in Massachusetts and lived there until she got married in 1976 (she moved to Vermont shortly after getting married). She attended elementary school In Gardner, Mass., and graduated from Narragansett Regional High School in Templeton, Mass. She graduated from Castleton University with a BA in psychology, and she also majored in special education and elementary education.

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Sandi has been a member of Christ the King Parish since 1978. She has served as co-director of religious education since 2015. "What I enjoy most about being the co-director of religious education is preparing the second graders for their first communion," said Sandi. She is also the second grade teacher at Christ the King School, where she has taught since 1998.

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Sandi and her husband, Tom, have been married for 41 years. They have two daughters, Melissa and Sara. Melissa lives in Williston with her husband, Tony, and their two sons, Caleb and Cameron. Sara lives in North Carolina with her husband, David, and their newborn son, Braden.