packed tight with delusions of promise and pride

So don't think that you know me for how I might speak

They call out to can boys, "we won't be here long"

and letters and cards, in the end, came to ????

The line about the train being loaded with shame sounds correct to me, as does the one on another young buck.

The can boys line could possibly be an Irish/Gaelic expression, I'm not sure. Maybe toicneáil? I suspect the last word afetr came to is a town/place name (sounds like Stall?) but I'm not confident.