Check my wording?

cupcait927

Together with their families

Ckel24

and

Ckel24's fiancé

Request the pleasure of your company

As they are united in marriage

Saturday, the twenty-seventh of September

Two thousand and fourteen

At half after six o'clock

Knapp Winery

Romulus, New York

Reception to follow

Jen4948

You don't need to capitalize "request," "as," or "at."  Also, you should include the address of Knapp Winery.  Aside from those things, it looks good.

cupcait927

Thank you!

CMGragain

Together with their families

Ckel24

and

Ckel24's fiancé

request the pleasure of your company

as they are united in marriage

Saturday, the twenty-seventh of September

two thousand and fourteen

at half after six o'clock

Knapp Winery

Romulus, New York

Reception to follow

cupcait927

Thanks @CMGragain! In your opinion, should I include the address for the venue?

CMGragain

It is optional.  Can people find it with a GPS?   Is it hard to find?  It's up to you.

Mitch617

"two thousand fourteen" not "two thousand AND fourteen"

CMGragain

Mitch617 said:

"two thousand fourteen" not "two thousand AND fourteen"

This is not really decided yet. Different etiquette gurus give differing opinions on this, so I usually don't bother to correct it.  I, personally, prefer the year without the "and", but that it only my personal opinion.

aspoonfulofsugar

I also agree no "and" in the year. As for the address for the winery, personally, I'd add it in. Edited for spelling.