Two adjacent memorials on the gallery balcony in front of the organ.

Memorial 1
Memorial to Thomas D Platt
Memorial 2
Memorial to Selina Jane Platt
Inscription 1
To the Glory of God and in Memory of
Thomas D...... Platt B.A.
Son of the Hon. Sir Thomas Joshua Platt, one of
the Barons of H.M.s Court of Exchequer, and for 48
years Vicar of the Parish of Holy Trinity, Portsea
At Rest 17th October 1902.

Inscription 2
To the Glory of God
and to the memory of
our beloved sister in Christ
Selina Jane
wife of the Revd. T.D. Platt
Vicar of this Parish
At rest 6th February 1896

Further Information
The second plaque includes the phrase "Vicar of this Parish" and yet we know from the first plaque that Thomas was Vicar at Holy Trinity. This suggests that these plaques were originally installed in Holy Trinity and were probably transferred to the Cathedral (St. Thomas's Church) in 1905 when the land upon which the church was built was purchased by the Royal Navy for an extension to the Dockyard and the Parish was abolished by Act of Parliament. Holy Trinity had been consecrated on 30th September 1841 and it became the first 'High' church on Portsea Island.
Reference to Platt's father, Sir Thomas Joshua Platt, is interesting in that the younger Thomas was one of very few members of the family who did not become an eminent lawyer and member of the Bloomsbury set. Sir Thomas was well enough known to have an entry in the Oxford Dictionary of National Biography.