In reply to mypyrex:
The cards specifying a particular relationship (brother, wife etc) are generally aimed toward areas of the market where the buyer is less likely to have the confidence to put the right form of words together for themselves. They're wanting something "personal" so go down this route, almost to prove that it isn't simpy a card they've hauled out of the drawer. I spent an unfortunate period of my life working for a greetings card manufacturer and condolence cards were some of the most difficult to get right.
Post edited at 12:21