Similar information at http://www.jazzbymail.com/albums_gr/gsl5102.html :

At a Georgia Campmeeting - America's first syncopated hit instrumental. It was composed by Kerry Mills and first published in 1897. This tune became the most popular cakewalk of all time and was widely imitated. The hallmark first strain is a transformation of a civil war song, Our Boys Will Shine Tonight into syncopation.

According to one site, OUR BOYS WILL SHINE TONIGHT is in the book "Songs of the Pioneers #3" published by Albert E. Brumley and Sons. Books in this series are quite popular. Surely some Mudcatter has it. (I might even have it myself, at home, but I'm not there now.)