Although it is not in print format, I consider the publication of The Quest of the Spirit as a scholarly paper on academia.edu part of the History of the Adepts book series. It is my favorite of the books in the series in fact, but there are several Stebbins scholars more qualified than I to comment on her works. As editor and publisher of Grimke, I approached Thomas Henry Burgoyne through her perspective as the only researcher pursuing her biography. From 1893 onward he must be approached as Norman Astley, and Stebbins researchers will shed more light.
If Stebbins is more popular among Church of Light readers (who I suspect account for a lot of the hits to Quest of the Spirit on academia) today, it seems appropriate because she was wildly popular in 1893.