When writing a letter to a distinguished person such as a vicar, it's important to use proper etiquette in the letter as well as on the envelope. A title is an important thing to the person who holds it, so when addressing an envelope you must take it into consideration. When addressing a letter to both the vicar and his wife, the task can become confusing. Here are a few simple rules to follow.
Check if the vicar and his wife have the same last name. You'll also want to find out whether either of them has any degrees or other titles that should be included in the address.
Start the address line with "The Reverend" if the vicar doesn't have any other titles in his name, such as a doctorate. If the vicar does have another title, add the abbreviation for that title after "The Reverend." For example, a vicar with a doctorate would be addressed as "The Reverend Dr."
Combine the couple's names on the rest of the line if they share a last name. For example, if the vicar name is John Smith, the address line should read, "The Reverend and Mrs. John Smithe." If they have different last names, then differentiate them on the envelope: "The Reverend Dr. John Smith and Ms. Mary Glass." If the wife has a title, use that as well: "The Reverend and Dr. John Smith."
Write the address you're sending the letter to underneath the names. If you're sending it to the vicar's home address, simply write that. If you're sending it to the church, write the name of the church on the next line, and the address of the church underneath that.
It's best to use this formal method of addressing an envelope to a vicar, even if he is one you're friendly with and don't address as "Reverend" in daily life. Even if the vicar uses a nickname, use the more formal version of his name on the envelope. For example, "Peter" instead of "Pete." Always include a first and last name in the address. Never write, "The Reverend Jones" or "The Reverend and Mrs. Jones."