Forms of address in the United Kingdom name is not used for a priest or deacon, the manner of address is Rev Mr etc., i.e. the Rev is used with the usual title. Without this title, the use of Rev with a surname should not be used in the United Kingdom for any ordained person, whether Anglican or not - it is a solecism. Catholic (and Anglo-Catholic) clergy favour Fr (Father) {or Mthr (Mother)}." "For further details see Crockford's Guide to addressing the Clergy." Clergy: 'introduce as Mr Pike or Father Pike according to "his" preference"" (Debrett's Etiquette and Modern Manners 1981 pg230) It should be noted
Master (form of address) "Master" was retained as a form of address only for boys who have not yet entered society. By the late 19th century, etiquette dictated that men be addressed as "Mister", and boys as "Master". The use of "Master" as a prefixed title is, according to Leslie Dunkling, "a way of addressing politely a boy ... too young to be called 'Mister'." It can be used as a title and form of address for any son. "Master" is used sometimes, especially up to circa late-19th century, especially in the UK to describe the male head of a large estate or household