Wedding Invitations

How do we word our wedding invitations where my mother is a medical doctor but my father is not?

Traditionally she would not use her title and the invitation would
read as any other invitation, however “times they are a changin’” and
many women feel slighted if they are unable to use their titles as men
have for generations. If your mother wants to use her professional
title it is socially acceptable for her to do so. Her name, preceded by
her title, appears on the first line. Your father’s name and title,
preceded by “and” appears on the second line. It is important to
include the word “and” as it signifies that they are married. Otherwise
it would appear that they were divorced.

How do we word our wedding invitations if both of my parents are doctors?

The most proper way would be for them to read, “Doctor and Mrs.
Stephen Andrew Sampson” but may read two other ways, “Doctors Sampson”
or “Doctor Mary Jane Sampson and Doctor Stephen Andrew Sampson” instead.