2.
Closely related to #1—this one will help Grandma's 35-across
4.
Also why you were up north
5.
A big ship, now sleeping
7.
Where hand-offs occurred
11.
I famously dislike her
12.
The youngest—usurped by #11
15.
The oldest, with the previous three
16.
The oldest, with the next two
18.
The youngest, but not like #11
20.
Why this puzzle exists