I like
Millie and
Minnie;
Effie's kind of cute. I think it's odd how unused
Fanny and
Nan are now a-days considering how well used they used to be, but I guess that's true of many old names.
How do you pronounce
Bridie? Bri-dee or Bree-dee? For that matter, how do you prn.
Bride? With a long I? Maybe it could work for
Bidelia.