With your daughter’s name, which is gorgeous btw, I would go for
[name_f]Felicity[/name_f] [name_f]Joy[/name_f], [name_f]Bonnie[/name_f] [name_f]Abigail[/name_f], [name_f]Willow[/name_f], [name_f]Susanna[/name_f] [name_f]Beth[/name_f] & [name_f]Susie[/name_f] [name_f]Abigail[/name_f] 
I also love [name_f]Rosemary[/name_f] but it feels a bit too close to [name_f]May[/name_f] for them to be sisters!
[name_f]Loving[/name_f] [name_m]George[/name_m] [name_m]Wright[/name_m] & [name_m]Thomas[/name_m] [name_m]Hale[/name_m] as brothers!
more ideas
[name_f]Nell[/name_f]
[name_f]Cora[/name_f]
[name_f]Annie[/name_f]
[name_f]Verity[/name_f]
[name_f]Iris[/name_f]
[name_f]Pippa[/name_f]
[name_f]Greta[/name_f]
[name_f]Florence[/name_f]
[name_m]Rufus[/name_m]
[name_m]Jack[/name_m]
[name_m]Charles[/name_m]
[name_m]Frederick[/name_m]
[name_m]Arthur[/name_m]
[name_m]Bertie[/name_m]