The coat of arms of the parish shows the Shield of the Trinity diagram.
The Parish church has a distinctive white pyramidal spire.
The Le Vesconte memorial (erected 1910) takes the form of an obelisk at a crossroads commemorating Philippe Le Vesconte (21 December 1837 - 21 August 1909) who was 10 times elected Constable between 1868-1877 and 1890-1909.
In folklore, the area of Bouley Bay has been reputed to be haunted by the Tchian d'Bouôlé (Black Dog of Bouley), a phantom dog whose appearance presages storms. The story is believed to have been encouraged by smugglers who wanted to discourage nocturnal movements by people who might witness the movement of contraband at the harbour in Bouley Bay.
Trinity is divided into the following vingtaines:
- Vingtaine de la Ville-à-l'Évêque
- Vingtaine de Rozel
- Vingtaine du Rondin
- Vingtaine des Augrès
- Vingtaine de la Croiserie
Trinity elects one Deputy
- 1532 Trinity trésor roll, a list of 16th Century residents of the parish
For some 30 years Adele Melanie Martret lived on the heights of Les Platons in a wheel-less Tantivy bus. She became so famous that she warranted the attention of even the Lieut-Governor, who made a special visit to see her in her unconventional home.
This fiercely independent woman had lived for some time with her father in a small dwelling on the north coast, but after his death in the 1950s, Rediffusion purchased the land the house was built on and demolished it. Adele was forced to find somewhere new to live.
It came as a total surprise to locals when, soon afterwards a bus appeared in the old quarry with Adèle in residence. Perched on breeze blocks and looking from a distance for all the world like a round-Island tour parked up for a scenic stop the bus in its distinctive Tantivy colours became a familiar sight to all passers-by on the coast road. Adele by now lived alone except for her dogs. Ruth Picot whose husband Len, one time Connetable of Trinity, remembers there were seven at one point and drew the attention of her own house dog, a bulldog, which had frequent altercations with those in the bus. Len visited her often and kept a close eye on her welfare throughout always making sure he visited on Christmas morning when he and Adèle would toast each other over a festive tipple.
Eventually Adele had a telephone which she used extensively, enabling her to keep in close contact with her friends.
Very little of what happened in the Parish escaped her attention and she could be relied upon to give the up-to-date account of any ongoing situation. She could be seen often going down to the shop with her bike, at first riding it but later when she could no longer do so, pushing it with her bags hanging from the handlebars.
The bus could have afforded very few home comforts, especially in the depths of winter but there were lights powered by car batteries and, eventually, even a television. For Adele life would no doubt have been a little easier in the summer months, when she loved to sit outside in the sunshine and fresh air with pot-grown vegetables and flowers decorating the area around.