Need help on the phrase "personal relationship with Jesus."

I've written a couple of posts in the past on the phrase "personal relationship with Jesus," where I have suggested it's not the most helpful phrase - here and here. 

I got an e-mail today from a reader asking where this phrase came from - did the Southern Baptists invent it or did it arise out of revivalism?  Frankly I don't know - my guess would be that some of both were involved - i.e. it would seem to fit with revivalism, but then receive it's popularity through the SBC.

Does anyone out there have any idea where the phrase came from?  I am also wondering if it has roots in romanticism and found it's way into the church that way.

Thanks for the help!