The window was to be a memorial to the Rev T.R.S.Campbell who was Minister of the church and Chaplain to the Trades for over thirty years.

The theme to be "the symbols of the Three United Trades & the Nine Incorporated Trades".
It was also desired that "the various emblems or tools of the trades be informally arranged within the overall design of the window grouping the Nine Trades and the Three united trades with a suggestion of separateness".