V.T.
I would invite both, but at the very least the bride's mother should be invited to all occasions, with the exception of the bachelorette party. Talk to the bride. I had two showers. One for friends and one for both families. It was easier to do two instead of having 60+ people at one shower. My bridesmaids were invited to both, but I said it was optional for them to show up to the family one.