Through community events and philanthropic support, the Trinity community works
together to create a wonderful environment for future generations
of Trinity students.

Close-knit and diverse, the Trinity community is committed to supporting boys as they
grow in mind, body, and spirit. Many of the School’s completed projects and works
would not have been possible except for the incredible generosity of the Trinity
community past and present

Trinity Community Groups

Trinity Alumni

All alumni are automatically members of the School’s Old Trinitarian Union (OTU). Visit our Alumni page for more information.

Trinity Connection

The Trinity Connection originally formed in 1989. Started by a group of mothers who wished to stay ‘connected’ after their sons had left the School, the Trinity Connection has since expanded and includes all past parents and carers of boys who attended Trinity.

Parents & Friends’ Association

The Trinity Parents and Friends’ Association started in 1928 and has a long history of providing great resources for the School and engaging in important conversations surrounding the future of the School. Some outstanding facilities the Association has secured for the School include: Compass Court, the organ in The Roderick West School of Music, the multimedia and air-conditioning in The James Wilson Hogg Assembly Hall, and the bus shelter on Chapel Way and additional classrooms at our Field Studies Centre in Woollamia.

P&F Meetings

During term, Parents & Friends hold evening and afternoon events to give parents and caregivers a forum to find out more about the School and take the opportunity to ask questions of the Headmaster and other senior staff.

Please see the School diary for the next meeting.


Auxiliary Groups

The Auxiliary groups organise various social activities throughout the year to provide opportunities to strengthen relationships within the Trinity community. All groups consist of willing volunteers, always on the lookout for new members and helpers.

The School’s Parents and Friends’ and Auxiliary pages on the InSite parent portal have more details. You will need your Trinity log in to access.

Summer Hill Prayer Group

The Trinity Grammar School Summer Hill Prayer Group is full of faithful community members who are committed to praying for different aspects of life at Trinity.

There’s a lot going on in the life of the School, the Prayer Group exists to:

  • Pray for specific needs within the School community
  • Give thanks for God’s blessing
  • Praise His name together
  • Encourage one another

The group meets in the Council Room at 8:30am – 9:30am on Tuesday on the even weeks of Term, or via videoconference.


Prayer requests for any needs within the life of the School are always welcome,
as are any members of the Trinity community who would like to join us in prayer.
All prayer request are kept strictly confidential.

Have a prayer request or want to join the prayer group?
Contact Trinity's Senior Chaplain, the Reverend James Harricks via School Reception.

Society of the Arts

Since 1951, Trinity Grammar School’s Society of the Arts has presented a dynamic annual program of performing and visual arts events. Its founding mission was to make the school a centre for appreciation of the arts, serving the community in which it is seated and providing rich educational experiences for students. Its illustrious history includes hosting such major international acts as the Amadeus Quartet, the Hilliard Ensemble, the Takacs Quartet, and more. Its legacy also includes Trinity Grammar School’s Art Collection, which is displayed throughout the school campuses. Delmar Gallery forms part of the Society of the Arts, and is the current focus of its activities.

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To join Delmar Gallery’s mailing list for exhibitions and events,
please complete the following form.

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