This one is going to hurt Calvinists and hurt us badly. The old stuff about Southern Presbyterians hating women, with shades of allusions to Southern neo-Confederate stuff, is already getting spread all over the internet. (Of course, Akin is a northerner and Covenant Theological Seminary was from a northern denomination that merged with the PCA, but it's too much to ask that facts not confuse people, I guess.)
Would you please inform me about the Cumberland Presbyterians? I'm a church of Christ member myself but visited a Cumberland Presbyterian congregation once with a work colleague. Compared to what I'm used to at the coC, it seemed pretty "high church" but the preacher was down to earth and folksy. When I met him after services, he joked that the symbol of the Christian Church (Disciples of Christ) was a wine goblet but that a moonshine jug was more apt for the Cumberland Presbyterians. :-)
Aside from that, my knowledge of that branch of Presbyterians is close to nil. Many thanks in advance for what information you can provide!