Her sister should be called...?

[Nameconfusion]

What would you call dd2 if dd1 is tabitha?

Sorry if any repetitions, but:

Tabitha and...

Beatrice
Emmeline
Maude
Ursula
Harriet
Penelope
Hermione
Eleanor
Helena
Rosalind
Emilia
Lydia
Imogen
Lana
Georgiana
Edith/Edie
Arabella
Josephine

Jean
Eleanor
May
Eliza