Request for musical knowlege, plz.
What I'm looking for:  American roots music or roots music-based bands writing dark, narrative songs.  Currently active artists are good; even better would be older recordings musicians who influenced today's bands.
What I'm not necessarily looking for: general recommendations for freak-folk, psych-folk, anti-folk.  I've seen the 
other threads for general folk music, and most (but not all!) aren't necessarily what I'm interested in.
This is a relatively specific request, I'm looking for albums that fit both a general musical category and a certain mood.  In fits and starts, I've been getting interested in American roots music: folk, especially the Appalachian vein; bluegrass; country; blues; etc.  And the ones that appeal to me most are the really dark ones, the ones revolving around death, dread, man's suffering at the hands of God/nature/women/other men and so on.  Here are some albums for reference:
Angels of Light - 
New Mother, 
We Are HimBonnie Prince Billy - 
I See a DarknessSix Organs of Admittance - 
Shelter from the AshBruce Springsteen - 
NebraskaJim White - 
The Mysterious Tale of How I Shouted Wrong-Eyed Jesus Some of Devendra Banhart's more dreadful songs would fall into this category, but most of his work doesn't.  I'm sure some of Nick Cave's albums would fit, but I haven't yet gotten around to exploring his catalog, so suggest away with Bad Seeds stuff (I like 
Dig, Lazarus, Dig!!! but its more rock-oriented than what I'm looking for here).  Ditto for Will Oldham's Palace records.  Current 93, Death in June, Sol Invictus and similar esoteric bands fit the mood I want, but I'd like something based more in traditional American musical forms than European ones.
Cheers! and thanks.