William,

Your comment re the impact of Fundamentalist Christianity on Adventist history is lacking.  The Fundamentalist movement arose around the turn of the 20th Century.  If you carefully study the history of "mainstream" Adventist thought, you will see that the 1919 Bible Conference marked the ascent of Fundamentalist thought within Adventism and the decline of the influence of AG Daniells and W C White.

Whether the evocative phrases "Adventist spring", "backlash against women in leadership" and "tide against [women]" were used by Valentine or arose in Gallagher's summary, I have no way of determining since I was not there.

It is undeniably true that women did at various times a century or more ago, hold influential church offices.  Are you aware that in the early 1900s one of the most effective evangelists and pastors in the NJ Conference was a woman, and that the conference sought approval to ordain her?

Admittedly these women were exceptional, as was Ellen White.