You may write Cpl. & Mrs.
Addressing a Mayor and his wife: Mayor & Mrs. John Smith
John Steinbeck helped President Lyndon B. Johnson write speeches addressing civil rights and poverty.
Usually when addressing someone in a letter, you would say or write "A Sheáin, a chara" (Dear John,).
The traditional title for a lawyer is "Esquire", which is abbreviated "Esq.". Therefore, on the invitation you would write John A Smith, Esq. if his highest degree is JD. If he has also received a PhD, you could write Dr. John A Smith, Esq.
No, it should be Mr. & Mrs. John Doe. You only use 'Ms.' if you are addressing a letter to someone you do not know is married or single or; in these modern times some women prefer you address them as Ms.
If the letter/invitation is primarily to the reverend but also her husband: Rev. Mary Smith and Mr. John Smith If the letter/invitation is primarily to the husband but includes the wife: Mr. John Smith and Rev. Mary Smith If it is strictly a business letter and not church related: Mr. & Mrs. John Smith
A wedding invitation for a couple when the man is a judge would be: Honorable & Mrs. John Doe.
John Christopher Shillock has written: 'An Invitation to the Terrorists' Ball'
If you know the name of the husband, it is proper etiquette to address the mailing envelope to "Mr. and Mrs. [his name here]". On the inner envelope the addressing can be much more informal, with a simple "John and Jane", etc.Another PerspectiveThis is the twenty first century. Women have names and an existence apart from their husbands. An invitation can be addressed to Margaret and William Anderson. Most etiquette books are decades behind the times.
For the 50th Wedding Anniversary invitation the man's name comes first: Mr. John Doe and Mrs. Jane Doe or if it is not that formal it could be 'John and Jane Doe.'
* I assume the married couple are redoing their vows because they may have had been married at the courthouse or, they were married in another country. It would be: Mr. & Mrs. John Doe on the wedding invitation. Or if you want an more informal Wedding Invitation you could put: Celebrating the marriage of John and Jane Doe.
When you are addressing a letter to married doctors it would be: Drs. John and Jane Doe.