The first thought I had was [name_f]Thomasin[/name_f]! I think something long, unusual but easily nicknamed (like Sylvana!) would be best here.
[name_f][/name_f][name_f]Thomasin[/name_f] [name_f]Louisa[/name_f] [name_f]Maple[/name_f]
[name_f][/name_f][name_f]Evangeline[/name_f] [name_f]Louisa[/name_f] [name_f]Maple[/name_f]
[name_f][/name_f][name_m]Artemis[/name_m] [name_f]Louisa[/name_f] [name_f]Maple[/name_f]
[name_f][/name_f][name_f]Genoveva[/name_f] [name_f]Louisa[/name_f] [name_f]Maple[/name_f]
[name_f][/name_f][name_f]Chrysanthemum[/name_f] [name_f]Louisa[/name_f] [name_f]Maple[/name_f] (my wildcard idea!)