My main character is a quirky, orphaned girl from the 20’s. She is running away from her Midwest past to find her wealthy aunt in [name_m]New[/name_m] [name_m]York[/name_m]. She is feisty, small and about 13-14 years old. Freckles, green and mousy brown hair. I’m having trouble deciding between a couple names.
[name_f]Tallulah[/name_f]
[name_f]Poppy[/name_f]
[name_f]Blossom[/name_f]
[name_f]Winona[/name_f]
[name_u]Flannery[/name_u]
Or any other suggestions 
[name_m]Ah[/name_m], the 20s is my favorite time period. I like [name_u]Flannery[/name_u] and [name_f]Tallulah[/name_f] the most, but here are some other suggestions
[name_f]Marjorie[/name_f]
[name_f]Fern[/name_f]
[name_f]Faye[/name_f]
[name_f]Vera[/name_f]
[name_f]Norma[/name_f]
[name_u]Meredith[/name_u]
[name_f]Sofia[/name_f]/[name_f]Sophia[/name_f]
[name_f]Deborah[/name_f]
If she was a teenager in the 1920’s, then she was probably born in the late 1900’s or the early-mid 1910’s (depends on when in the 1920’s you’ve set it). [name_f]Tallulah[/name_f] would make the most sense out of the ones you’ve listed, though here’s a few other ideas:
[name_f]Florence[/name_f]
[name_f]Mabel[/name_f]
[name_f]Minnie[/name_f]
[name_f]Elsa[/name_f]
[name_u]Mattie[/name_u]
[name_f]Pauline[/name_f]
[name_f]Dora[/name_f]
[name_f]Rosa[/name_f]
[name_f]Beaulah[/name_f]
[name_f]Eula[/name_f]
[name_f]Louise[/name_f]
[name_f]Irene[/name_f]
[name_f]Martha[/name_f]
[name_f]Annie[/name_f]
[name_f]Nellie[/name_f]
[name_f]Vera[/name_f]
[name_f]Stella[/name_f]
[name_f]Opal[/name_f]
[name_f]Maxine[/name_f]
The name [name_u]Flannery[/name_u] is beautiful. I have a few suggestions: [name_f]Opal[/name_f], [name_f]Diana[/name_f], [name_f]Willow[/name_f].
Odds are pretty high her name would have been something boring like [name_f]Mary[/name_f] or [name_f]Margaret[/name_f], but I have relatives from that time period named [name_f]Ida[/name_f], [name_f]Delia[/name_f], [name_f]Lila[/name_f], [name_f]Susan[/name_f], [name_f]Sophronia[/name_f], [name_f]Julia[/name_f], [name_f]Amanda[/name_f], [name_f]Elizabeth[/name_f], [name_u]Jessie[/name_u], and [name_f]Sarah[/name_f].
From your list, I vote [name_u]Flannery[/name_u], no contest 
I actually don’t mind the name [name_f]Mary[/name_f], and I think it fits pretty well for your character - or better still, [name_f]Molly[/name_f]. [name_f]Molly[/name_f] really works.
So yeah - I like [name_u]Flannery[/name_u] best, and I suggest [name_f]Molly[/name_f]. [name_f]Hope[/name_f] I helped 