When I was in teaching, I sometimes sprang a sudden General Knowlege Test. Into this test, I inserted the question "When was this kingdom of England last successfully invaded from abroad?". The fun here was watching as the dimmer students confidently scribbled down "1066" and then lounged lazily. The brighter students realised that Father H must be Up To Something, and fiddled uneasily.
I deemed the correct answer to be 1688". Because that was the year of the Dutch Invasion, the Orange Usurpation, which led to the current "Royal Family" (Sir Max Beerbohm used the entertaining phrase 'Smug Herrenhausen') being in situ.
All Office Holders ... including Clergy ... were required to swear allegiance to the New Usurping Orange. Clergy who declined to do so ... on the grounds that that they were already bound by their oaths to James VII and II ... were called Non-Jurors (Non-swearers). They were deprived; but they and their supporters regarded themselves as still the true Office Holders. And since several bishops were of this group, they were able to regard themselves and their group (though small) as the lawful, valid, Church of England.
After some years, the group split. There were those who believed that they should maintain their legal claimed position by being strictly liturgically legal; but there were those who could not resist the temptation afforded by their position to make liturgical changes, This second group came to be called the 'Usagers'. The 'Usager' Eucharistic Liturgy of 1718 is to be found in Anglican Liturgies of the Seventeenth and Eighteenth Centuries, XL of the Alcuin Club Collections, London S.P.C.K. 1958, by W Jardine Grisbrooke, pp71 sqq..
But in the Library of Sion College, there is a Book of Common Prayer, which includes provision for every Anglican liturgical need. The 1718 liturgy is bound into it; but with alterations ... some of moment, others less so ... throughout. Its cataogue number, when I was last there, was ARC A35 16 N73 ... as long as I copied that correctly. I do not think the book was ever put into print.
In my next post, I plan to transcribe "THE PREFACE", which I consider to be of interest. Meanwhile, here is a 'Statement of Authority'.
We Jeremy Collier and Thomas Brett Bishops of the Catholick Church in England do hereby with the unanimous consent of our Brethren the Priests then present receive and appoint this Book (with the Several insertions and deletions) to be our Book of Common Prayer and Administration of the Sacraments & other rites and Ceremonies of the Church. Given under our hands this eleventh day of March in the year of our Lord One Thousand Seven Hundred and nineteen. Sign'd Jer; Collier Tho: Brett. Witness A Campbell Geo Brown Roger Laurence Thos Deacon John Rutter Tho: Wagstaffe