In addition to what I learned about Labadism from the two books about Maria there were listed in the first Patreon PDF, I did some additional research. Of course Wikipedia on: 

 – Labadism (https://en.wikipedia.org/wiki/Labadists)

 – Jean de Labadie (https://en.wikipedia.org/wiki/Jean_de_Labadie)

 – Anna Maria van Schurman (https://en.wikipedia.org/wiki/Anna_Maria_van_Schurman)

There’s not a-super-lot of web information on Labadists and Labadie, but I found some good articles on Anna Maria. She seems like one cool lady!

Here’s what looks like an interesting, though a bit overly in-depth for my brief needs PDF: http://dspace.library.uu.nl/handle/1874/235540

And a much briefer blip about her fight for the right to study: http://www.kvinfo.dk/side/674/article/70/

If I need more credible sources, I will have to make a trip over to the Dartmouth library one of these weekends. That’s bound to happen someday anyways.