Weddingbee boards

The traditional wording starts with the brides parents, because traditionally they are the ones who host the event.  If everyone is hosting, there is nothing wrong (as long as it is fine with all your parents) with an invitation that says something like:

Jane and John Jones
Susan and Sam Smith
Lucie and Larry Lee

Request the pleasure of your company at the marriage of their children

Cindy Smith and Matt Lee

You could also put just your various parents at the top, and include his parents after his name (son of Lucie and Larry Lee) although the implication there is that his parents are contributing primarily their son to the occasion, and your family is hosting.  Speaking as a stepmother myself, I believe that you can ignore the issue of whose biological daughter you actually are for the purposes of the invitation.  I'm not sure there is any good way to include both your parents and your step-parents while making that distinction - most of the wording you see like that assumes that the event is hosted by one parent/step-parent combination, in which case you could indicate that you are either "her" or "his" daughter.  In your case, if you feel the need to explain beyond word of mouth which people are biologically responsible for your existance, you could do that in the program.

Good point about the names, Lindz1701.

Also, remember that you're writing an announcement, not a sentence.  In a sentence you would include a lot of punctuation that you wouldn't on an announcement (e.g., Chuck Willie Robinson, son of Mr. and Mrs. Willie Robinson,).

So if you think it looks better to include all the ands and commas, go right ahead, but it's really not necessary.  I think when you get the names of all the various parents appropriately centered or justified and in your fancy font it will look lovely either way.

As far as how many names are there, I would just feel lucky to have so many people who love you and want to make your day special!

Miss Peony, I would suggest that if you use the formal title of Mr. or Mrs. for some of your various parental units, you should use it for all of them (Mr. Jack Taylor and Mr. Alan Thomas as well).  Also, the sad result of using that form of addressing is that unless the wife has a different last name than her husband (for instance, if Mrs. Jill Smith was the wife of Mr. Jack Taylor) the use of the woman's name is not correct.  So you can say "Mr. and Mrs. Joe Smith," or you can say "Jill and Joe Smith," but to say "Mr. Joe and Mrs. Jill Smith" is not really correct.

Also, if you want to include deceased parents on your invitation, announcement, or program, the correct way to do that is to indicate "daughter (or son) of the late Mr. Jack Taylor."  A deceased person cannot actually host the event (request the honor of your company).  Many etiquette books will tell you that the deceased parent's name should not be included on the invitation at all, only on the announcement or program, and I'm sure that's at least partly because of the difficulty in doing it in a way that makes sense.