I think my vote would have to go to [name_f]Frances[/name_f] - I just [name_f]ADORE[/name_f] the nickname [name_u]Frankie[/name_u] on a little girl
[name_f]Florence[/name_f] is a beautiful, vintage choice, but I can’t get behind any of the intuitive nicknames - even [name_f]Flora[/name_f], which seems more like a standalone name to me.