About Us

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2 girls outside for pumpkin carving
John Arthur

John Arthur


Mr. Arthur has served as Principal of the Canandaigua Middle School since July of 2015. Prior to becoming the principal, John spent 5 years as 7th grade assistant principal at CMS. He also worked 9 years as a 6th grade teacher and three years as an assistant principal at the Geneva City School District. Mr. Arthur earned his teaching degrees at SUNY Brockport, and his Administration Certification from the University of Rochester’s Warner School. He is a proud veteran of the United States Marine Corp – Semper Fidelis. John and his wife Tracy live in Canandaigua with their children Emma and Gabe.

The Middle School (grades 6-8) offers a comprehensive and flexible program that meets the ever-changing needs of our students. The school's curriculum, scheduling and organization are aligned with middle school best practices to stimulate a highly engaging academic atmosphere. A close relationship between students and adult staff members is the school's hallmark and character education is a top priority.


215 Granger Street
Canandaigua NY 14424



Office Hours

7 a.m. - 4:30 p.m. (school year)
8 a.m. - 3p.m. (summer)

Ann Ceddia

Mrs. Ceddia
7th Grade Asst. Principal


Mrs. Ceddia previously worked at Red Jacket as a teacher and ELA Coordinator. Prior to beginning her administrative duties at the Middle School, Mrs. Ceddia worked at the Canandaigua Elementary as a teacher and most recently as the Assistant Director of Special Programs for the district. She received her bachelor's degree from Mount Union in Ohio and her Masters degree from Elmira College. Mrs. Ceddia received her Administrative certificate from SUNY Oswego.

Peter Jensen

Mr. Jensen
8th Grade Asst. Principal


Mr. Jensen taught at Marcus Whitman prior to becoming an Assistant Principal at the Middle School. He received his bachelor's degree from SUNY Cortland and his Masters degree from Elmira College. Mr. Jensen received his Administrative certificate from SUNY Brockport.