Originally Posted by
drewguy
You are probably better off waiting for another family trip and trying to use each person's 30k miles to book tickets together. Or just use opportunistically from each account for your/spouse's travel.
And sorry to parse
drewguy's spot on response.... I am just going to add that when it does come time to book tickets out of each separate account, that they will be just that: separate. While the PNR's can be noted linking other PNR's, its just manual. I give this caveat because it can make for complexity for 5 separate PNR tickets down the road.
The tail of the response is the direction I would go... keep control of the kids miles, book tickets for you and the spouse/SO.