Yes, if your son can get a tuition break at Jesuit schools go that route for sure.
Younger son probably needs to discuss with dad if he will contribute towards college from that fund. Do you know how much is in it?
I don’t understand how a married couple can have a college fund for their kids, get divorced, and yet the court doesn’t mandate that the fund be used for the kids from THAT marriage. Weird. Is this because wife’s lawyer screwed up?