Did you ever see the likes, since you been born
The people keep a comin but the train done gone
And Johnny come down to hilo
My old man
Explanation: The train is a camel train bound for glory. hilo is a poker game and my old man is a reference to Methuselah
Or possibly the line about the train is just part of a travelling verse, put there for the rhythm, and asking what it means is like asking what "strata-latta latta bob ba latta bob ba linktum" means.