You write “Dr and Mrs. Smith”
Mr & Mrs James Angstrom Jr.
Nothing, your husband's brother is your brother in law but his wife isnt related
Major and Mrs . . .
Addressing letter for a husband and wife team:Mr. & Mrs. John DoeDrs. John and Jane DoePastors John and Jane DoeManagers, John and Jane Doe
If the Pastor who is the third and not a Junior is the only Pastor then you address him and his wife: Pastor & Mrs. John Doe. If all three were Pastors then you would address the letter as: Pastor John Doe,III & Mrs. John Doe.
You would use the first name of the husband and the first name of the wife. This is how you address a Japanese married couple through a letter.
Please be more specific about their professions. We DO want to help.
As Mr & Mrs.
Example : Mr & Mrs Edward J. Flynn Jr.
The address should read: Drs. John and Jane Doe or, Dr. John Doe and Dr. Jane Doe.
When addressing an envelope to the wife of a doctor who is not a doctor herself then and he is Dr. John Doe, then address the envelope to her as Mrs. John Doe or Ms. (Mrs.) Jane Doe.
Address it to Mr & Mrs. Jones. That is universally understood.