XP from BHB: 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!

Im not sure of the proper way but...
if it is 2 single people with huge names I would just put them on the separate lines. I dot think anyone would really notice that...GL!

Thanks so much for your input ladies! I just finished the list for my calligrapher