I sent FMIL a list of FI's family who is invited today so she could tell us how they are related. Unless they have the family name, FI has no clue who they are (and I could figure out the people with the family name). FMIL comes back with two people who aren't on the list we have to add! We agreed to aunt and uncles and some first cousins that FI acutally knows (this sounds limited but it's 50 people of our 159...nearly 1/3 just his family) and it is FMIL youngest brother. So he should be on the list but I just thought I had a grasp of our numbers. So not mad at her because he should be included just wish he would have been mentioned the 20 times we went over the guest list over the past 14 months!