About Us

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4 students hanging out
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)

audra ahl

Mrs. Audra Ahl

Asst. Principal

Mrs. Ahl comes to Canandaigua from Fairport where she was a high school math teacher for 13 years and STEAM instructional coach for UPK-12 for the last three years. She works in the summer for Monroe One BOCES and has done a lot of work in diversity, equity and inclusion initiatives, the implementation of the Culturally Responsive Sustaining Education Framework, and has been an active member of Fairport’s diversity council. Mrs. Ahl grew up in Camillus, earned her BA and Master’s degrees from SUNY Geneseo and her administrative certificates from SUNY Brockport. Additionally, her husband is a math teacher at Fairport and she lives in Fairport with her husband, two daughters, and son. Mrs. Ahl will work closely with John Arthur and our sixth grade students, family, and staff.

theron chinn

Mr. Theron Chinn

Asst. Principal

The team at Canandaigua Middle School will be joined by Mr. Theron Chinn. Theron, a 2002 graduate of Canandaigua Academy, has been a school counselor at Penn Yan Middle School for the last nine years. He received his bachelor’s degree in psychology and communications from West Virginia University and his masters’ degree and administrative certifications from The College at Brockport. Mr. Chinn is excited to return to Canandaigua, “As a Canandaigua alumni, I am deeply honored to have the opportunity to give back to the school district and community that has given me so much. I am eager to join the team of dedicated educators at Canandaigua Middle School who are driven to inspire and empower students to reach their full potential.”