This year I attended a Fourth-of-July parade in Webster, Wisconsin, that included some antique farm tractors. The old farmer sitting next to me identified one of them as a "one-lunger." It was the first time I had heard the term. I hadn't known there was such a thing.

I think that line "clickety-clack of the railroad track" comes from ONE MORE RIDE written by Bob Nolan—a brilliant song with lots of internal rhyme.