Invitations will be coming soon. We ask that you RSVP as soon as you receive them. You'll be able do that here on the website, or in the regular old mail. Meanwhile, see the details here and start planning on having a good time with us.
If their names are on the invitation, then yes, of course.
If your invitation says 'and guest,' absolutely.
The ceremony is in a church. God is watching, so use your best judgement. The reception is outdoors. It can get warm here in June, so fans will be on-site, but spiky heels and thick wool suits are inadvisable. Dancing shoes are recommended.