Hi Dale, good to see that you still pop in to Mudcat. I have yet to come across a reissue of the original McMichen recording. There are some Wildcats recordings available for download from the Western Swing on 78 blog, but alas not 'Georgiana Moon': Western Swing on 78.
I did come across this video on Youtube - an instrumental versionby 3 oldtimers - that is well worth a look: Georgiana Moon.