When sending correspondence to a couple, proper titles must be used in the address. If one or both individuals have the title of Dr., one of the following examples should be used:
1. Dr. and Mrs. Robert Jones (The husband is a doctor)
2. Dr. Susan and Mr. Robert Jones (The wife is a doctor)
3. Drs. Susan and Robert Jones (Both the husband and wife are doctors)
4. Dr. Susan Brown and Mr. Robert Jones (The wife is a doctor and uses her maiden name both professionally and socially)