No, it will be a Catholic ceremony without a Mass.
Yes, please bring your kids and significant others. Some families may receive a save the date for their family with kids that do not live at home, it has been quite a task to track down address especially for the large families so if individuals did not receive one please let them know that they are also invited. In those circumstances they may not be listed when you RSVP for your family but you can enter in their first and last name and respond for them or have them do so if you aren't sure
Please do not take photos inside the church during the ceremony. Afterwards or at the reception you may take as many as you like but we would also prefer nothing be put on social media. We enjoy our privacy and if we take to social media for anything, we would like it to come from ourselves.