How many people?

I'm working on name tags.   Some people are undecided, some families are half in, half thinking about it, but here is a kind of picture of who's coming:

Moms:  20
Dads:    12 (possibly 16)
Young adults: 8   (18 to 28 years old)
Girls:  10 (maybe 11) *
Boys:  12 (maybe 13) *
Babies:  2 (boys; not counted otherwise)
Grand parents, possibly 2

I'm not putting ages on name tags, but here are the
children's ages, including the two undecided:

Girls:
14
12
11
11
8
8
7
6
5
3
3

Boys:
14
13
11
11
10
9
9
8
6
5
4
3

So the total is 64 to 72, I think, counting babies.