Some tips from our experience in using Address Book under OS X to print mailing labels for us (like long Wedding mailing lists!)

There is a known ‘missing spouse’ problem that we and others have encountered. Here are some tips on what it is and how to simply fix it.
http://www.macosxhints.com/article.php?story=20051223120527834&query=bugs
http://www.macosxhints.com/article.php?story=20051221232010333

Tip: Rather than fight to get the formatting perfect, print to pdf from Address book, then open and edit in Adobe Acrobat. A caveat is that the printing may be slightly off center on the Avery labels after editing in Acrobat, though we didn’t attempt to resolve this.