There were several oldtime recordings of it before Poole's:

Da Costa Woltz's Southern Broadcasters 'Take Me Back to the Sweet Sunny South' [GE 12779] - ca May 1927.

Red Patterson's Piedmont Log Rollers 'The Sweet Sunny South' [Vi 21132] - 12 Aug 1927, issued Feb 1928.

North Carolina Ramblers 'Sweet Sunny South' [Pmt 3136] - ca Sept 1927.

Posey Rorer & The North Carolina Ramblers 'Sweet Sunny South Take Me Home' [Ed uniss.] - 25 Sept 1928.

Charlie Poole & The North Carolina Ramblers 'Sweet Sunny South' [Co 15425-D] - 7 May 1929, issued Sept 1929.

There were also recordings by Tennessee Ramblers [1929], Arkansas Woodchopper [1931] and J.E. Mainer's Mountaineers [1936].

Info from Meade et alia 'Country Music Sources'.

--Stewie.