My2centz, 
Here is my offer.  I will donate to atoday.org twenty thousand centz ($2000 USD) if you or anyone else can show us any primary source document from the archive of  Seventh-day Adventist historical documents that contradicts the 1878 Signs of the Times article universally attributed to JH Waggoner. 

Show us any document in which a leader in the SDA church argues women are not biblically disqualified from serving as 'ruling elders.' To borrow Waggoner's term. 

Before,  say 1900.  My own guess is you can't find anything dated fifty years ago,  say prior to 1967.  I am not so familiar with the source documents that this offer is not without some risk.  I do know the gross misrepresentation of historical fact to support proponent arguments in favor of WO is dishonest & reprehensible.  

It's honorable and worth some risk to refute these false assertions.  Cost me some money.  Make my day.