I agree with your historical assessment too. I think it is tied in with Carrie Nation and Prohibition as well. Assemblies of God, I know, prohibits drinking, and I believe that denomination started up around then.
Correction to my earlier post...I should have used Millenialism instead of Dispensationalism.
I didn't want to use Carrie Nation as an example, because, off-hand, I don't know her religious bent. But she is obviously fair game, along with the other prohibitionists who were trending Fundamentalist.
Previous post #118 directed to you.