Wedding Invitation Etiquette

Factual Questions
1

So, I’m addressing envelopes for my upcoming wedding and I came across a curiosity.

When addressing to someone with a title, i.e. Dr. I have seen conflicting reports on the proper way to address the envelope

Most commonly I see the following:
Doctor and Mrs. Alan Smithee
address line two.
city state zip

What if both are Doctors?
Doctor and Doctor Alan Smithee ?

Doctor Alan and Doctor Ellen Smithee ?

Doctor Alan Smithee
Doctor Ellen Smithee ?

Furthermore, what do I do about the inner envelope?
Doctor and Doctor Smithee? that just looks funny.

2

How about: “Doctors Ellen and Alan Smithee” ?

3

I may have found a workable reference.
http://www.somewhereintimecalligraphy.com/envelope-addressing-etiquette.html

4

Yep, I would agree with Xema.

But what about a male non-doc and a female doc?

Mr. and Dr. Alan Smithee seems wrong…

5

According to the above referenced link…

Doctor Jane Davis
and Mr. Carl Davis

If they’re both doctors, then either of the following is correct according to the site above:
Doctor Jane Davis
and Doctor Carl Davis
or
The Doctors Davis

So I see it like this; it’s Mr and Mrs unless you have to use both of their first names then you put the woman’s name first.

6

Enright’s cite covers it, as well as the question in the OP:

Dr. Elaine Smithee
Mr. Alan Smithee