Adrian Fortescue (1874-1923) was a Roman Catholic priest and Englishman who was an influential liturgist, artist, calligrapher, composer, polyglot, amateur photographer, Byzantine scholar, and adventurer. He has been described by Michael Davies as, 'the greatest authority on the liturgy of the Roman Rite the English speaking world has ever known'. Canon J.B.O'Connell (d. 1977). Ceremonial and rubrics were his life's work and on the death of Adrian Fortescue in 1923, he was asked to prepare the third edition of this book. Over the next forty years he prepared a further nine editions. Canon O'Connell was a secular priest of the Menevia Diocese. Dr Alcuin Reid is a former Benedictine monk. He is a leading liturgy scholar and the author of The Organic Development of the Liturgy.