Koala
"Just seems odd that OP and her husband both refuse to 'lose' their names, but are putting their child, or the child's spouse, in exactly that position further down the track. The child is going to have to lose Georgeson or Jones or both, right?"
WRONG
It's clearly hard for a lot of people on this thread to comprehend, but neither the child nor the child's spouse (if the child ever gets married) will "have to" lose a name.
As we've already said several times, they could both - SHOCK HORROR - keep their names.
Then give their children one surname from each parent.
Again, you're welcome.