Respondents: 55 (This poll is closed)
My very favorite is [name_f]Frances[/name_f] [name_f]Olive[/name_f]. If you don’t like [name_f]Franny[/name_f] or [name_u]Frankie[/name_u], what about [name_f]Fia[/name_f] or [name_f]Annie[/name_f]?
Besides that, [name_f]Emmeline[/name_f] [name_f]Olive[/name_f] is beautiful, and so is [name_f]Elisabeth[/name_f] [name_f]Frances[/name_f]. [name_m]How[/name_m] about [name_f]Emmeline[/name_f] [name_f]Frances[/name_f]?
My suggestion is [name_f]Tess[/name_f] [name_f]Cecilia[/name_f].
You have a lot of very lovely choices
[name_f]Cecilia[/name_f] [name_f]Olive[/name_f]/[name_f]Frances[/name_f] - a gorgeous choice and i think it works with [name_f]Louisa[/name_f]. I prefer [name_f]Olive[/name_f] as a middle
[name_f]Elizabeth[/name_f]/[name_f]Elisabeth[/name_f] - very pretty, very classic, but it lacks the flair, the unexpectedness of your other choices.
[name_f]Emmeline[/name_f] [name_f]Olive[/name_f] -[name_f]Emmeline[/name_f] [name_f]Olive[/name_f] is a beautiful name, one of my favourites on your list and [name_f]Milly[/name_f] is very sweet! [name_f]Emmeline[/name_f] does have more than one pn but if she was goinbg by [name_f]Milly[/name_f] it wouldn’t be too much of an issue. If you’re unsure though, [name_f]Matilda[/name_f] [name_f]Olive[/name_f] ‘[name_f]Milly[/name_f]’, [name_f]Amelie[/name_f] [name_f]Frances[/name_f] ‘[name_f]Millie[/name_f]’, and [name_f]Madeline[/name_f] [name_f]Olive[/name_f] ‘[name_f]Milly[/name_f]’ came to mind
[name_u]June[/name_u] [name_f]Elisabeth[/name_f] is lovely. Simple yet distinctive
[name_f]Ada[/name_f] [name_f]Frances[/name_f] is delightful! So classic but vibrant. I think the difference in length of [name_f]Louisa[/name_f] and [name_f]Ada[/name_f] means the endings don’t blur too much. Alternatively, [name_f]Adelaide[/name_f] [name_f]Frances[/name_f] ‘[name_f]Ada[/name_f]’ or [name_f]Adele[/name_f] [name_f]Frances[/name_f] may be alternatives
[name_f]Frances[/name_f] [name_f]Olive[/name_f] - quite cute and i do like it.
Some nicknames that are a bit more out of the box could be [name_f]Essie[/name_f], [name_f]Effie[/name_f], [name_f]Fifi[/name_f], [name_u]Izzy[/name_u] maybe?
[name_f]Audrey[/name_f] [name_f]Frances[/name_f] is very sweet though more popular than some of your choices. It is lovely though and one of my faves
A couple of other ideas that popped into my head
[name_f]Agnes[/name_f] [name_f]Elisabeth[/name_f] ([name_f]Aggie[/name_f], [name_f]Nessie[/name_f], [name_f]Essie[/name_f])
[name_f]Elspeth[/name_f] [name_f]Frances[/name_f]/[name_f]Olive[/name_f] ([name_f]Elsie[/name_f], [name_f]Ellie[/name_f], [name_f]Effie[/name_f])
[name_f]Cornelia[/name_f] [name_f]Frances[/name_f] ([name_f]Cora[/name_f], [name_u]Nelly[/name_u], [name_f]Coco[/name_f], [name_f]Cece[/name_f])
[name_f]Rosemary[/name_f] [name_f]Frances[/name_f] ([name_u]Romy[/name_u], [name_f]Rosy[/name_f], [name_f]Mary[/name_f])
[name_f]Florence[/name_f] [name_f]Elisabeth[/name_f] ([name_f]Flora[/name_f], [name_f]Flo[/name_f], [name_f]Flossie[/name_f], [name_u]Ren[/name_u])
[name_f]Harriet[/name_f] [name_f]Frances[/name_f] ([name_f]Hattie[/name_f], [name_f]Etta[/name_f])
[name_f]Beatrix[/name_f] [name_f]Olive[/name_f] ([name_f]Bea[/name_f], [name_f]Trixie[/name_f], [name_u]Bo[/name_u])
[name_f]Helen[/name_f] [name_f]Elisabeth[/name_f] ([name_f]Nell[/name_f], [name_u]Nelly[/name_u])
[name_f]Caroline[/name_f] [name_f]Olive[/name_f] ([name_f]Callie[/name_f], [name_f]Carrie[/name_f], [name_f]Lina[/name_f], [name_u]Caro[/name_u])
[name_f]Cecilia[/name_f] [name_f]Olive[/name_f] / [name_f]Cecilia[/name_f] [name_f]Frances[/name_f] - I love [name_f]Cecilia[/name_f], and nickname [name_f]Cece[/name_f] is so cute! Both combos are lovely but I like [name_f]Cecilia[/name_f] [name_f]Olive[/name_f] the most.
[name_f]Elizabeth[/name_f]/[name_f]Elisabeth[/name_f] [name_f]Frances[/name_f] “[name_f]Beth[/name_f]” - I agree with above pp that [name_f]Elizabeth[/name_f] is a little plain compared to your other choices. I prefer the [name_f]Elisabeth[/name_f] spelling. [name_f]Beth[/name_f] is okay but I’d prefer [name_f]Elle[/name_f], [name_f]Ellie[/name_f], [name_f]Eliza[/name_f], [name_f]Liza[/name_f], or [name_f]Lissie[/name_f] for a nickname.
[name_f]Emmeline[/name_f] “[name_f]Milly[/name_f]” [name_f]Olive[/name_f] - This is so cute! I’d prefer [name_f]Emmie[/name_f] as a nickname though.
[name_u]June[/name_u] [name_f]Elisabeth[/name_f] / [name_u]June[/name_u] [name_f]Frances[/name_f] - [name_u]June[/name_u] is still quite plain to me. [name_m]How[/name_m] about [name_f]Juno[/name_f]? [name_f]Juno[/name_f] [name_f]Frances[/name_f] is lovely.
[name_f]Ada[/name_f] [name_f]Frances[/name_f] - This is really pretty! I like the short, spunkyness, but if you wanted a longer name how about [name_f]Adaline[/name_f] or [name_f]Adalia[/name_f]? I also second [name_f]Adelaide[/name_f].
[name_f]Frances[/name_f] [name_f]Olive[/name_f] - This makes a nice combo, but I find [name_f]Frances[/name_f] a bit outdated for a first name.
[name_f]Audrey[/name_f] [name_f]Frances[/name_f] - This is so beautiful! Honestly, if you love it, I wouldn’t let popularity get in the way.
Other suggestions:
[name_f]Adelaide[/name_f]
[name_f]Iris[/name_f]
[name_f]Beatrix[/name_f]
[name_f]Della[/name_f]
[name_f]Elodie[/name_f]
[name_f]Elowen[/name_f]
[name_f]Freya[/name_f]
[name_f]Hazel[/name_f]
[name_f]Ivy[/name_f]
[name_f]Flora[/name_f]
[name_f]Willa[/name_f]
[name_f]Willow[/name_f]
[name_f]Juno[/name_f]
[name_u]Juniper[/name_u]
[name_f]Violet[/name_f]
[name_f]Sylvie[/name_f]
[name_f]Matilda[/name_f]
[name_f]Maisie[/name_f]
[name_f]Esme[/name_f]
I like [name_f]Frances[/name_f] and [name_f]Audrey[/name_f] from your list. I would also suggest [name_f]Camilla[/name_f] or [name_f]Camille[/name_f] with the nickname [name_f]Millie[/name_f] as an alternative to [name_f]Emmeline[/name_f].
You have lots of great choices. I think [name_f]Emmeline[/name_f] [name_f]Frances[/name_f] would also be beautiful. I think [name_f]Josephine[/name_f] nn [name_u]Jo[/name_u] or [name_u]Josie[/name_u] or [name_f]Fifi[/name_f] or [name_f]Fina[/name_f] would also be lovely with [name_f]Louisa[/name_f].
[name_f]Frances[/name_f] and [name_f]Audrey[/name_f] are hands down my favourites as a sister to [name_f]Louisa[/name_f]. I agree with [name_f]Erin[/name_f] that [name_f]Josephine[/name_f] would also go spendidly!
I love [name_f]Milly[/name_f] as a name but [name_f]Camille[/name_f] or [name_f]Millicent[/name_f] as first name options.
[name_m]Hi[/name_m] there.
[name_f]Louisa[/name_f] is wonderful.
Here are my thoughts for a little sister:
[name_f]Cecilia[/name_f] [name_f]Olive[/name_f] / [name_f]Cecilia[/name_f] [name_f]Frances[/name_f] “[name_f]Cece[/name_f]” -I like [name_f]Cecilia[/name_f] & think that it works w/[name_f]Louisa[/name_f]. I don’t personally love [name_f]Cece[/name_f]. It sounds a little snooty to me. And I hear it a lot a lot in my area.
[name_f]Elizabeth[/name_f]/[name_f]Elisabeth[/name_f] [name_f]Frances[/name_f] “[name_f]Beth[/name_f]” - I like [name_f]Elizabeth[/name_f] a lot, but don’t personally love [name_f]Beth[/name_f]. No real reason why…maybe it’s just a bit bland. But I adore [name_f]Bette[/name_f] & [name_f]Bess[/name_f], so go figure. I like [name_f]Elsie[/name_f] & [name_f]Eliza[/name_f] a lot too. Or [name_f]Tess[/name_f]!
[name_f]Emmeline[/name_f] “[name_f]Milly[/name_f]” [name_f]Olive[/name_f] - Aw, [name_f]Milly[/name_f] is cute. [name_f]Emmeline[/name_f] could get pronounced wrong. I would say [name_f]Emma[/name_f]-uh-line. Is that not clear? You could do [name_f]Emilia[/name_f], [name_f]Camilla[/name_f], [name_f]Camille[/name_f], [name_f]Matilda[/name_f] or [name_f]Millicent[/name_f] nn [name_f]Milly[/name_f].
[name_u]June[/name_u] [name_f]Elisabeth[/name_f] / [name_u]June[/name_u] [name_f]Frances[/name_f] - I kind of like [name_u]June[/name_u] more too. It does seem to have more character than [name_f]Jane[/name_f]. [name_u]June[/name_u] [name_f]Frances[/name_f] is darling, and the nn [name_f]Junie[/name_f] is very sweet.
[name_f]Ada[/name_f] [name_f]Frances[/name_f] - [name_f]Ada[/name_f] [name_f]Frances[/name_f] is very nice. I think that [name_f]Ada[/name_f] is getting popular though. It’s very close to [name_f]Ava[/name_f].
[name_f]Frances[/name_f] [name_f]Olive[/name_f] - Aw, I love [name_f]Franny[/name_f] & [name_f]Francie[/name_f].
[name_f]Audrey[/name_f] [name_f]Frances[/name_f] -Very cute. It is a bit common & doesn’t have any nns though.
My favorite from your list may be [name_f]Frances[/name_f], but if you don’t like the nns I’d go w/[name_u]June[/name_u].
Other suggestions:
[name_f]Audra[/name_f]
[name_f]Beatrice[/name_f]
[name_f]Bridget[/name_f]
[name_f]Celia[/name_f]
[name_f]Cecily[/name_f]
[name_f]Cornelia[/name_f]
[name_f]Dorothy[/name_f]
[name_f]Dorothea[/name_f]
[name_f]Flora[/name_f]
[name_f]Gwendolen[/name_f]
[name_f]Georgia[/name_f]
[name_f]Georgina[/name_f]
[name_f]Georgiana[/name_f]
[name_f]Hattie[/name_f]
[name_f]Imogen[/name_f]
[name_f]Josephine[/name_f]
[name_u]Marian[/name_u]
[name_f]Maureen[/name_f]
[name_f]Margaret[/name_f]
[name_f]Olive[/name_f]
[name_f]Phoebe[/name_f]
[name_f]Penelope[/name_f]
[name_f]Rosalie[/name_f]
[name_f]Rosalind[/name_f]
[name_f]Rosamund[/name_f]
[name_f]Rose[/name_f]
[name_f]Ruth[/name_f]
[name_f]Sylvia[/name_f]
[name_f]Theodora[/name_f]
[name_u]Vivian[/name_u]
[name_f]Wilhelmina[/name_f]
[name_f]Hope[/name_f] this helps. 
I love [name_f]Frances[/name_f] [name_f]Olive[/name_f]. I don’t think [name_f]Frances[/name_f] needs a nickname. She can just be [name_f]Frances[/name_f]. Most children today go by a full formal name and it’s not a big deal.
My second choice would be [name_f]Cecilia[/name_f] [name_f]Frances[/name_f].
I love the suggestion of [name_f]Adele[/name_f]. [name_f]Louisa[/name_f] and [name_f]Adele[/name_f] sound classic, multicultural, and unexpected. [name_f]Adele[/name_f] [name_u]Francis[/name_u].
Out of your options my favorite is [name_f]Cecelia[/name_f] [name_f]Olive[/name_f]. But really they are all great!
[name_f]Cecilia[/name_f] – perhaps [name_f]Cecily[/name_f], to have the different endings?
[name_f]Ada[/name_f] – could you use [name_f]Ada[/name_f] as an occasional nickname for [name_f]Audrey[/name_f]? Otherwise, [name_f]Louisa[/name_f] & [name_f]Adelaide[/name_f] ‘[name_f]Ada[/name_f]’ would make for a gorgeous sister duo!
[name_f]Frances[/name_f] – you could potentially use [name_f]Cece[/name_f] as nickname here (albeit a little less obvious), or perhaps [name_f]Effie[/name_f], for the initial?
[name_f]Elizabeth[/name_f]/[name_f]Elisabeth[/name_f] – could you just use [name_f]Beth[/name_f] as a full first, if you’re exclusively going to use it over [name_f]Elisabeth[/name_f] anyway? It would cut out the popularity and spelling concerns, too.
[name_f]Emmeline[/name_f] – what about [name_f]Emilia[/name_f] “[name_f]Milly[/name_f]”, to help your pronunciation concern with [name_f]Emmeline[/name_f]?
I like [name_f]Emmeline[/name_f] [name_f]Olive[/name_f] best, but also like [name_u]June[/name_u] & [name_f]Audrey[/name_f] with [name_f]Louisa[/name_f].
Oh I adore [name_f]Frances[/name_f] [name_f]Olive[/name_f] for sister [name_f]Louisa[/name_f]. But all of your options would pair very well no matter which you decide on.