Lindley's music is influenced by a huge range of American folk and popular music, the New Orleans thing is only part of the picture. And it's not just American, either, he draws on all sorts of stuff.

It's not just Lindley, the foundation of that New Orleans "second line" sound is the rhythm ONEandtwoANDthreeandFOURand, which turns up everywhere from bossa nova to voodoo ceremonial music to Nigerian patty-cake games to -- you name it. Apparently it was introduced to the New World through the slave trade, it seems to originate in West Africa.

heh, it's a big subject -- people make careers out of question less complicated than this. It's interesting to follow the trail, but don't get hung up on absolute answers, you won't find many.

Jockomo fi na ne / Brother John is gone, that's one hypothesis, there are many others -- just pick one you like. :)