Follow Principal Harrigan (@Natick_HS) on Twitter! Brian Harrigan, Principal Please click here to view Mr. Harrigan's speech from Natick High School's 2016 Graduation Ceremony. Please click here to view Mr. Harrigan's speech from Natick High School's 2017 Graduation Ceremony. Please click here to view Mr. Harrigan's speech from Natick High School's 2018 Graduation Ceremony. Please click here to view Mr. Harrigan's speech from Natick High School's 2019 Graduation Ceremony. Please click here to view Mr. Harrigan's speech from Natick High School's 2020 Graduation Ceremony. Questions or feedback? Reach out to Mr. Harrigan via email.