The Winchendon School The Winchendon School Search | Advanced Search | New Members | Coupons and Discounts | All Categories Other >> Education >> Private Schools The Winchendon School 12 Ash StreetWinchendon, MA 01475 | View on Google Maps Sean (John) Duncan 978-297-1223 Visit Site Connect With Us Member Since: 2024 Send a message to: The Winchendon School Your Name: Your Email: Subject: Message: (Date: 5/19/2024)