I really love Evangeline and Clementine! I also like Violet.

Tabitha is nice i think, its unusual without being weird
Octavia
Arabella (Bella or Belle) Arabella... sounds like a trannie name
Violet (Vi)
Evangeline (Evie) i like Evangeline but it might be a bit matchy- matchy with Emmeline... but its up to you
Jillian
Clara
and
Clementine... never give your child a name that has a famous song... she will get it her whole life, think of all the girls called Layla, Lucy, Gloria...

The middle names will be Elizabeth, Victoria and Marie.

I like Charlotte, Scarlett, Abigail, Susannah

Tabitha Elizabeth, Violet Marie, Clara Victoria

Arabella Marie and Evangeline Victoria

More names:
Gracie Katherine
Audrey Caroline
Emma Sophia
SharAnn Elizabeth
Charlotte Isabella

Lily Rose
Ruby Elizabeth
Hazel Victoria

Tabitha Victoria
Octavia Marie
Arabella Elizabeth

One reason that I really love this combination is because they all share the "a" at the end of their names, giving them a gentle bond, but not forcing them to having obvious triplet names, such as Kay, Kayla, Kayra (those are all beautiful names, in my opinion, but give them all to the same sisters would be too much). I think the names give them all their own identity, but still allow them to have that special bond from being in the womb together.

Another reason would be that I think that these names are simply beautiful they each have their own distinct feel, and have such a nice sound. They're unusual yet timeless names that make you interested and smile when you hear them. I think that all the names sound very nice with your incredibly cute oldest daughter's name. As a side note, I absolutely adore the name Emmeline. And on a sad note, I am very sorry about your previous miscarriges. I am truly sorry for your and your family's loss.

I hope my input helped, and I wish you, your husband, Emmeline, and your coming daughters the best of health and happiness. Congratulations!