Oh Susannah!

The tune to the song "Oh Susanna!", published in 1848, is heard uner the opening credits and twice in the carton as the wagon train movies west. It is sort of a movie cliche to associate "Oh Susanna" with pioneers and wagon trains.

And everyone knows that the line "I come from Alabama with a bajo on my knee" is reapeated several times in the song, though only the tune is heard in "Wagon Heels". The opening narrator says the wagon train heads west for California in 1849. Many wagon trains did head west for california in 1849. Alabama had enough English speaking American settlers to b emade a territory in 1817 and to be admitted as a state in 1819, so that seems reasonably historic for a Looney Tunes cartoon.

But the map shows the USA only going as far west as the Allegheny Mountains and everything west of them is depicted as another country belonging to Injun Joe. So in the fictional universe of "Wagon Heels" there shouldn't be any English speaking settlers in Alabama, west of the border in injun joe's territory, and nobody could sing that they came from Alabama.