1. I think this is mostly the human propensity for making trouble asserting itself again. Why, if someone wanted to disguise a lynching, would they put a head in the wheels of a train, where it would be noticed? Why would a train be standing around unmanned in a podunk town waiting to accept a head?

2. If you have ever tried to compose rhymes, you would discover that it's really hard. They probably rhymed "town" and "found" out of desperation. Where did this verse come from, anyway? Maybe somebody was sick and tired of the verse from the Folk Song ABCDEary which refers to a train wreck and doesn't rhyme at all.

3. If you have ever ridden country roads across the eastern U.S., you will have noticed that a grove of big pines outlined against the sky means that there's a cemetary there. The "girl" of the song is mourning for someone, or she's depressed, and she spent the night among the pines.

4. I've noticed before, that a lot of men can't stand for a song to be out a woman, and they've got to change it to be about their own kind. Changing "husband" to "daddy" is related to this trend. It diminishes to woman to a kid.