Married, she uses her husband’s name socially
Mr. and Mrs. Mark Carter

Married, she prefers Ms.
Mr. Mark Carter and Ms. Mary Carter
Ms. Mary Carter and Mr. Mark Carter
[Mr. and Ms. Mark Carter is incorrect]

Married, informal address
Mary and Mark Carter
Mark and Mary Carter

Married, she uses maiden name
Mr. Mark Carter and Ms. Mary Jones
Ms. Mary Jones and Mr. Mark Carter

Unmarried, living together
Mr. Mark Carter & Ms. Mary Jones

A woman who outranks her husband:
elected office, military rank: The Honorable Mary Carter and Mr. Mark Carter
professional or educational degree: Dr. Mary Carter and Mr. Mark Carter

Both are doctors (PhD or medical) and use the same last name
The Doctors Carter [omit first names]
Drs. Mary and Mark Carter / Drs. Mark and Mary Carter
Dr. Mark Carter and Dr. Mary Carter / Dr. Mary Carter and Dr. Mark Carter

Both are doctors (PhD or medical), she uses her maiden name
Dr. Mary Jones and Dr. Mark Carter
Dr. Mark Carter and Dr. Mary Jones

Mark as helpful. 9

Posted in: Etiquette, Envelope addressing etiquette