mothers in SF

I attended a Boskone panel on women in SF. It was mentioned that mother main characters were scarce, then that even scarcer were women for whom motherhood was not the impetus for action. Naturally I tried to make a list.

Maternal main characters:
* _Saga_. I forget their names, but the narrator's parents are the focus of action, as is keeping the infant narrator alive.
* _Paladin of Souls_: Ista. She is a mother, but it's not what she's doing.
* _Barrayar_: Cordelia's motherhood is critical.
* _Gentleman Jole and the Red Queen_: Cordelia's son is well into independent adulthood; OTOH, the story is driven by Cordelia's desire to be a mother again.
* _My Enemy, My Ally_: Ael is deuteragonist (along with Kirk) of this Star Trek novel. Her motherhood is incidental to her actions.

Maternal side (but important) or ensemble characters:
* _Children of the Lens_: Clarissa MacDougall had been active as the Red Lensman; I think she sees action again in this book, with her children grown.
* Star Trek TNG: Dr. Crusher. I think her being a doctor is important more often than her being Wesley's mom, but I've barely seen TNG, so I don't know.
* Star Trek III: Carol Marcus, Genesis scientist and mother of David Marcus.
* Nanoha (TOS and A's): Admiral/Commodroe Lindy Harlaown commands a dimensional starship; her teen son serves under her; she also adopts a girl in or after A's.
* Nanoha StrikerS: sort-of main character Nanoha adopts a child during the series, and the "best friend" whom she shares a bed with becomes "Fate-mama" as well.