Holy Trinity can trace its continuous existence since the Revolution of 1688 when the priest was the Reverend James Thornton, and known to be “a strong Episcopalian”. On 7 November 1689 he was ‘deprived of his benefice’. Ministry to the faithful continued in a number of locations by many faithful priests over the ensuing years.
It was in 1779 that Episcopalians again found a home in Keith, when a simple two roomed cottage in Bridge Street, New Keith, was used as a meeting house. In 1807 a small chapel was opened in Keith, although it was not consecrated until 1832.
In 1878 a Church Fund was opened and by 1882 the foundation stone of the present church was laid on the site next to the Parsonage in Seafield Road. This church has a unique link with the American Episcopal Church in that, in the Sanctuary is the actual chair, the “Seabury Chair”, on which Bishop Robert KiIgour (Bishop of Aberdeen, 1768-86) sat when consecrating Bishop Samuel Seabury as the first Bishop of the American Episcopal Church.