We recently had my fiancé's stepbrother email him and ask the following "who exactly from his immediate family is invited?" We assume he is asking about his 14 year old son, however, they have three other children who are grown, young adults. We are keeping our wedding somewhat small and cannot invite everyone. That being said, how do we reply to this? Honestly, you'd think they'd get a clue when the invitation was addressed to he and his wife only. Another note, we are not having kids at our wedding as we prefer an adult celebration. Not sure what to do or how to respond to his question, could use some help? I'm okay making an exception for their 14 year old as they are coming in from out of town, but its one thing to possibly be asking about 4 people total to add to my guest list/headcount.