Found the following in Manx Quarterly #23 (by next week the whole article will be on my site)
BISHOPSCOURT.
The Royal visit to Bishopscourt proved to be the most outstanding incident in the tour. Their Majesties were welcomed in the picturesque grounds by the Lord Bishop who, with Mrs Denton Thompson, escorted the Royal party inside their house. After about ten minutes absence, they re-appeared, and the King and Queen looked inside the adjoining Cathedral. Immediately afterwards chairs were drawn up under the shade of the North wall of the Church, on which their Majesties and their Suite sat for their photographs. During the sitting an incident occurred, which obviously amused the King and Princess Mary. A press photographer in his anxiety to secure the best possible snap kept side-stepping to the right. He had, of course, his camera up, to his eve, and was consequently oblivious of the fact that kneeling below him was another dress photographer. The result is easily imagined), he fell rather heavily over his colleague, his camera. flying out of his hands. He, however, felt more than compensated on observing the King's laughter, and later prided himself on providing the joke of the afternoon. Nevertheless, the photographing continued, and among the Insular people who figured in the group were the Lieut.-Governor, the Lord Bishop, Mrs Denton Thompson, Mr B. E. Sargeaunt, Miss Hilda Thompson and Miss Irene Thompson (the Bishop's daughters), Miss Dorothy Thompson (the Bishop's niece), Mr Bernard James Thompson (the Bishop's son), Mrs Jeffrey Thompson (the Bishop's sister-in-law), the Rev. C. A. Cannan, and the Rev. C. V. Stockwood.

There is a photo of a tree planting -
C A Cannan was acting vicar of Patrick in 1921 - Stockwood was vicar of St Olaves ramsey - I dont know their future careers