I don't know if there's any defined policy on specifically that but you've done the right thing to post it here.
As soon as you said Massachusetts man, I took a look. John Jackson qualifies for PGM so I took a closer look and yes, he had no children. And if he had they wouldn't have been born in Virginia. So I went ahead and detached Susannah as his daughter.
He's still got a couple of children attached that cannot be his.