For a little girl character (around eight-ish). Last name is Ingalls. [name]Red[/name] hair, dark eyes, highly ADHD, and talks much too much. Thanks for any opinions! 
[name]November[/name] nn [name]Ember[/name] or [name]Nova[/name]. It has more mystique than [name]September[/name], and seems more like a real name.
ditto that
[name]September[/name] is more of a red month to me. I feel like Sevy would be a nickname, or [name]Timmie[/name].
Finally, someone as nutty as me!
I think [name]September[/name] works better for your character, [name]November[/name] always makes me think of a quiet, sweet, gentle girl, especially nn [name]Nova[/name].
For a nickname, I’d use Sep, [name]Ember[/name], or [name]Emmy[/name]. (actually,. [name]Ember[/name] works for both, come to think of it)
I think [name]September[/name] works better and [name]Ember[/name] would definitely work as a nickname either way. 
I love [name]September[/name] much more. [name]Ember[/name] or [name]Berry[/name] may be a cute nickname. I also like [name]October[/name] nn [name]Toby[/name].
I like [name]September[/name] 
[name]September[/name].
I actually quite like this for your character.
I also agree that [name]November[/name] seems like a more quiet, calm, collected girl rather that the red haired child with ADHD.
Maybe I’m crazy. I’ve always liked moth/week names (Wednseday, [name]November[/name], [name]April[/name]…)
For the character [name]September[/name] seems much better!
[name]November[/name] is a more redhead sort of name, in my opinion. But for the character, I like [name]September[/name]. Not nearly as mysterious, which is good due to the fact the character is a little girl. Also, there’s a great number for nicknames for both of them.
[name]November[/name]:
[name]Nova[/name]
[name]Ember[/name]
[name]Em[/name]
[name]September[/name]:
Tem
Temmie
[name]Ember[/name]
[name]Em[/name]
I like [name]November[/name]. You could call her Novie or [name]Nova[/name].
[name]November[/name] is definitely my favorite name out of the two, but I still think [name]September[/name] sounds younger and more like your character.
[name]September[/name] is more red haired to me. Like the nn [name]Emy[/name], Sep… I agree with the [name]October[/name] nn [name]Toby[/name] thought
[name]September[/name] [name]Cate[/name] Ingalls, nn [name]Emmy[/name] it is Thanks, everybody!
[name]September[/name] seems more childish.
[name]November[/name] by far, [name]September[/name] would make me quit reading.
I like [name]November[/name] better. But [name]September[/name] sounds younger and therefore more suitable. But why [name]September[/name] or [name]November[/name]? Why not name her after the summer months? Something like [name]July[/name] or [name]August[/name]? (I like [name]August[/name])
Another suggestion. Maybe you can change the month into another language?
[name]September[/name]:
Szeptember (hungarian)
Chawawarki (Quechua) <I suggested it just for fun ;D it sounded like alot of nonsense>
Septembra (Interglossa)
[name]November[/name]:
Ayamarka (Quechua)
If you’re reconsidering about the month, check out this website, it’s got the twelve months in different languages.
http://www.omniglot.com/language/time/months.htm
I hope you find something you love 
Umm, folks, I think she already chose her name: [name]September[/name] [name]Cate[/name] Ingalls