If stated on your invitation that you can bring a plus one, then yes. If it is not in your invite, unfortunately only you are the one requested in attendance.
If you don't RSVP by the specified date, then unfortunately you will not be accounted for and will be missing out on the festivities.
Please be comfortable but respectful to the occasion. No Pj's, sweatpants, sweatshirts, etc. It may be warm as the end of August in Washington can be hot and it is an outdoor wedding. This is an outdoor wedding with natural terrain so please be mindful on your shoe selection (grass ceremony area, gravel, cement, etc)
If your child(ren) are listed on your invitation/rsvp, you may bring your child(ren). As we wish all of our friends and families kids can be there, we have a limited space for all our guest.