By tradition, the congregation was founded by Alexander Duncan in 1715. However, a list of principal members of the congregation from 1713 shows that its origins extend back to 1689 when the Episcopalian structure of the Church of Scotland was removed by Act of the Scottish Parliament, and the Scottish Episcopal Church as a separate entity emerged. In 1689, Episcopalianism was not widely supported in the West of Scotland, but there were families in Glasgow with Episcopalian and Jacobite sentiments, some with links to the church authorities prior to disestablishment. During the reign of William III they kept a low profile, becoming more assertive after the accession of Queen Anne in 1702.