Help with a name combination

[twitchywoman.livejournal.com]

Someone very dear to me died 7 months ago from Alzheimer's and I want to honor her somehow in my children's name.  No matter what, the first child I have will be named after her in someway.  If I have a boy, the middle name will be her last name, Manning.  If I have a girl, I'm stuck.  Her name was Linda Susan (first and middle) and I don't know how to combine or use those names in a middle name.  I guess I'm looking for variants of those names too.  I'm not particularly fond of the name Linda, but I would use it for her.

Here are some of my favorite girl names:
Ada
Aurelia
Esme
Esther
Katherine
Liesl
Louisa
Violet