[Nerwen]

Person? –yes.
Mortal? –yes.
Human? –sort-of.
Half-Elven? –no.
1st Age? –no.
3rd Age? –yes.
Nazgûl? –no.
Hobbit? –yes!
Male? –no.
Rosie Cotton –no.
Speaking part? –no (for good reason)!
Melilot Brandybuck? –no.
Esmeralda Brandybuck? –no.
Deceased? –yes.
Elanor Gamgee? –no.
Gollum's grandmother? –no.

Originally Posted by Galadriel55

Esmeralda could be Merry's mom, you are right. We don't know that for sure, though.

Well, we do, actually. Check the family tree. You'll find her as "Esmeralda Took" (maiden name).