Different people in my family host different holidays. That way everyone knows from year to year where/when things will be. Usually the "host family" sends out a mass email or a small invitation/reminder with the time of the get together and a request to bring a covered dish. DH and I have traditionally hosted Memorial Day and it just so happened that it fell on our anniversary this year. Not a big deal to us... we figured we'd still have plenty of time together after everyone went home (and we did!). So most of our family ended up bringing us cards and gifts for our anniversary, BIL even gave us an anniversary toast before the meal, and SIL called the gathering our "anniversary party" several times. As people were leaving to go home, those who didn't bring cards/gifts said things like "oh I'm really sorry I didn't bring a gift or anything, I didn't know it was an anniversary party" or "hey if I would have known it, I would have just brought your card today instead of mailing it". We told them it actually wasn't an anniversary party and that it was just a Memorial Day cookout (umm you know just like we've hosted the past three years) (and nevermind that the decorations were all red, white, and blue). All of the emails and information we sent out about the get together said Memorial Day. Nowhere did we say anything about our anniversary. The only thing mentioned about that was when MIL asked if we were sure we wanted to have it that day b/c it was our anniversary and we said yes, that was the plan and it was fine. A lot of our family members had to work on Saturday and our neighbors usually have a big cookout on Sunday so we figured parking would be an issue if they were both on the same day. Anyhow, now I feel bad. I don't want people thinking we threw ourselves an anniversary party. Should I send out thank you cards to those who brought gifts?? Should I worry about further clarifying that it was a Memorial Day cookout, not an anniversary party?? I tried to do that as much as possible, but I'm sure I didn't get to everyone. WWYD?