I grew up blocks away from a train track. In my childhood, I was immersed in Johnny Cash. Then came my formative music life, you know when you know it all.... late teens early twenties... then it was Prine, Goodman, and Croce. Trains are in my gypsy blood, and I think even the bums are heroes. Here's a great video of Todd Snider done by who else... MusicFog.com
There... I think I caught up now... sorry I lost a day or so along the way.