>>In my community, hyphenating the last names for the kids is fairly common, though the parents involved have made a variety of different choices for themselves (both hyphenated, wife hyphenated, both using original names). I'll be curious to see how this plays out as these kids make their adult choices.
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>We've done that without our daughter. My wife and I have a family names, but daught is Plant-Delay.

In case nobody bothered with the obvious pun... did you happen to be married a long time before she was born?