I couldn't sleep one night, and so got up with a confused combination of two songs going through my head. The tune was Goin' Around This World Baby Mine an old-time standard that the Coon Creek Girls recorded, I think. Funny thing was, I started singing:

What did Delaware, baby mine?
What did Delaware, baby mine?
What did Delaware,
A New Jersey to the fair
What did Delaware, baby mine?

What did Tennessee, baby mine (3X)
A shiny Nebrasky
What did Tennessee, baby mine

What did Idaho, baby mine? (3X)
Alaska, I don't know
What did Idaho, baby mine?

What does Ioway, baby mine? (3X)
About a Washing-ton, I'd say
What does Ioway, baby mine?

Hawaii today, baby mine? (3X)
Been in Missouri all day
Hawaii today, baby mine?

And so on. It being near 2 AM by now, the verses got a little risque with
How did Wiscon-sin, baby mine? (3X)

I'll leave that one up to your imaginations! The point? What's the real origin of these jokes? Seems I heard an old Woody Guthrie record with some of them on it, especially the What did Delaware verse. Anybody else remember this novelty song? It had a different tune, I'm sure.
Jim