Oh we'll hang Jeff Davis from a sour apple tree

"Oh we'll hang Jeff Davis from a sour apple tree" (and similar) is a variant of the American folk song "John Brown's Body" that was sung by the United States military, Unionist civilians, and freedmen during and after the American Civil War. The phrase and associated imagery became relevant to the post-war legal issues surrounding the potential prosecution of former Confederate politicians and officers; the lyric was sometimes referenced in political cartoons and artworks of the time, and in political debates continuing well into the post-Reconstruction era.

Source: Wikipedia — Oh we'll hang Jeff Davis from a sour apple tree (CC BY-SA 4.0)