"Fire in the Log", also known as "Possum up the Gum Stump" or "Who Shit in Grandpa's Hat" is an American polka or reel in cut time and D Major. The parts are played AABB.
The tune is not widespread but was in the repertoire of Scioto County, southern Ohio, fiddler Jimmy Wheeler (1917-1987) as "Fire in the Log" although Wheeler said that it also had the alternate titles. The field recording was made by John Harrod.
The Quebecois tune "Les Noces à Lise" has a cognate first strain, but the second strains differ.
The banjo tab is mostly from John Letscher who learned it at a jam in Gettysburg from Sandy Hofferth. I modified the banjo tab a bit to make it correspond more closely to the fiddle version.
John says this reminds him of Saturday nights at the Unter Uns which was the German club across the street from his home in Altoona.
John Lamancuso included the tune in his website collection.