I think [name_f]Dorothy[/name_f] nn [name_f]Rorie[/name_f] fits perfectly! Second choice would probably be [name_f]Harriet[/name_f] “[name_f]Hattie[/name_f]” with the sibset.
I think I like the full name [name_f]Dorothy[/name_f] with your other children’s names, but I really don’t like the nickname [name_f]Rorie[/name_f] so I voted for [name_f]Harriet[/name_f] nn: [name_f]Hattie[/name_f].
[name_f]Dorothy[/name_f] ! It’s my personal favorite with your other names, although I do also like [name_f]Harriet[/name_f] a lot (but it seems to be a no go?).