My mom.
13 kids.
36 grand kids.
7 great grand kids.
17 spouses.

For Thanksgiving, throw in
3-4 Uncles & Aunts.
10-15 Cousins.
10-15 Kids of cousins.
5-10 friends who have no place else to go.
Usually between 60-80 people...all at my mom's house.

19 kids
52 grandkids
13 great-grandkids.

NDHouston's dad has 60 first cousins on that side.

...starting from my grandparent's level:

3 children (my dad and his two surviving sibs, out of 7 kids total)
20 surviving grandchildren (out of 25 total grandchildren)
62 surviving great-grandchildren (out of 63 total great-grandchildren)
6 great-greatgrandchildren
25 spouses (surviving out of 29 total)

We have a family bash every summer near Michigan City--everyone can't always show up, but it's still quite a crowd. Back in the 60's we used to go to the Holiday Inn-Gary East for what is still recalled as the "Loony Picnic." A fun madhouse! Hope you guys had a blast--with 32 grandkids, in the next 20 years or so you'll have a further population explosion.

My parents
11 kids
33 grandchildren
15 great grandkids
18 spouses
2 uncles.

about a month before my grandmother passed away unexpectedly. Great-grandmother, my grandparents, my grandmother's brother and his wife and their 4 kids, spouses, children, my grandparents' 9 kids, spouses, 20 grandchildren. When the photographer asked for "just the family" to go for a group picture, the entire room got up and went to the camera. It was a great moment in a great party for a wonderful couple.

They are well over 100. His mom died about 5 years ago or so. until her death they held Thanksgiving in her 2BR, 1 Bath home. She would not have it any other way. They served dinner in 3 shifts. The last shift was Grandma, her children and their spouses at the table and served by the next generation. It is crazy. I think they are over 50 great grandchildren now.