29!!
Next year, we do it buffet-style. We had one long table and two tables for 8 each, so had bowls of food on each table. My dear SIL (visiting from Louisiana!) washed dishes for hours after dinner. It was great fun, and my Dear Mom had all her kids here. (forgot to get a picture with all of us though!)
It's not even 7 PM, and they have all gone home! (of course, some of them were here before 11 AM!)