Place/Escort card wording etiquette

I’m sure there’s already a post out there about this, but I can’t find it…could you ladies please let me know the proper etiquette for wording place/escort cards? Is this correct?

Married Couples
Mr. & Mrs. John Doe
Dr. & Mrs. John Doe
Dr. Mary Doe & Mr. John Doe
Mr. & Mrs. John Doe & Susie (if they have a kid)

Unmarried Couples
Mr. John Doe & Guest
Miss Mary Smith & Guest
Mr. John Doe & Miss Mary Smith (if you know both names)

What if it’s 2 single people with SUPER huge names? Do you wrap it to 2 lines and, if so, do you leave the “&” in there or remove it? Ex:

Miss Catherine Abcdefghijkl & Mr. Thomas Mnopqr
Table 10
- or -
Miss Catherine Abcdefghijkl
Mr. Thomas Mnopqr
Table 10

I'm soooo confused!!! Thanks!

You got it right !

If the names are super long, then definitely wrap them to 2 lines, leave in the ampersand after the first name.
Alphabetize by last name.

My young niece and nephew are attending the wedding, and I gave them each their own escort cards :
Master Mitchell F.....
Miss Lauren F......

Miss is generally used for unmarried girls under the age of 18.
Unamrried ladies are usually titled Ms.

Thanks so much Susanne! I just finished the list for my calligrapher

No problem.
Mine are being done right now.