In the rushed few minutes before Shabbat I pulled out my old notes and looked for the pages about R David Oppenheim and his scrivener daughter. Found some, others seem to be missing, and I updated the post.
Tonight I came across another blog that leads to another female scribe. As far as I can tell, Jen is less expansive about her path to writing, but much more generous in her discussion of the halachic questions involved.
So that makes three in the past 200 years. And counting.