Weekend Challenge 1/14

Tim is 11 years old. Every year, he gathers with his family for a picnic in the park. The following people came to the picnic this year: one grandfather, one grandmother, two fathers, two mothers, one father-in-law, one mother-in-law, one daughter-in-law, four children, three grandchildren, one brother, two sisters, two sons, and two daughters. But Tim said it wasn't a very big group this year. How many people were at the picnic, and who were they?

Whew! This one took some hard thinking. Can you solve the weekend challenge? How about your children? Students? Post your answers in the comments section. Check back on Monday for the solution.

Have a great weekend!