HTS's 40th Anniversary

In September 1981, HTS opened its doors in the basement of Holy Trinity Church in Thornhill, Ontario, welcoming 66 students who took part in the first school year. By June 1982, school was finished for the summer — but many important milestones were ahead. 
This June, 40 years after that first school year was complete, we are opening our doors once again — this time to commemorate four decades of learning, growing and connecting. While in many ways our ethos remains the same, we have evolved over four decades, not only in our physical space but also in how we teach, learn and uplift one another. 

We invite the entire HTS community, from that very first class of students and our retired staff to our current students, parents and alumni of all years, to join in our anniversary celebration as we look back on where we came from, and look forward to the next 40 years. 

Welcome back, HTS community — we’ve been waiting for you.


Join us to celebrate HTS's 40th Anniversary!
June 3-4, 2022

We look forward to welcoming back all members of the HTS community to an in-person event four decades in the making.

Are you a current or new HTS student or parent?

Trinity Fair
40th Anniversary Edition 

Friday, June 3, 2022
For all current and new families & faculty
Are you an HTS alumni or community member?

Alumni Celebrations
With class reunions for milestone years
Saturday, June 4, 2022
For all alumni and school community members

HTS through the decades

Take a trip down memory lane!

We've gone deep into our archives to highlight some special photos from the past 40 years and we're not stopping here.

Over the next few months, we will be adding more photos and videos to these galleries, and we would love your help. Please consider sharing your own photos with us here, and if you see yourself or your classmates in these photos, please let us know!

Look back

As we ramp up to our 40th Anniversary Celebration this June, we are taking a chance to reflect back on all that has evolved over the last four decades – and that includes celebrating all of our community members and their achievements! 
We would be honoured if you would share your stories and photos with us that we may use to support our 40th Anniversary Celebration. Please feel free to share them at the link below or email them directly to

Pay it forward

As we celebrate 40 years of HTS, we are thoughtfully thinking toward the future and those students who may be impacted by our world-class education – and who will in turn impact the world. Join us by considering supporting our Annual Fund - Student Financial Aid.

To donate to Student Financial Aid, click on the link below and select Student Financial Aid as your Annual Fund designation. Please know, there is no amount too small. If you have any questions, please email us at
Are you an HTS alumni? Learn more about our alumni events and programming at