Book Suggestions for "American" Lit Syllabus (a terrible title...)

If you don't follow me on Twitter, then you are unaware that I am attempting to teach a somewhat unusual American Lit survey in the fall.  Basically, I am not teaching the traditional American canon (i.e., the greats of U.S. literature).  Instead, my course will offer a broader interpretation of "American" to include works from U.S. writers and writers from the Americas at large -- North, Central, South, and the Caribbean.  Essentially, this course will be designed to challenge the traditional canon in almost every way; even the U.S. texts I select will offer a challenge.  While I am familiar with a great deal of work from these regions/areas, there is always the possibility that I've missed something I should seriously consider for inclusion -- hence, this post.

If you have a suggestion for a short story, play, or novel that is from one of these regions, please leave a comment.  I am also open to suggestions for U.S. works written by traditionally marginalized groups (Native Americans, people of color, etc.).

So suggest away!

P.S.:  Translations are more than welcome (and expected, considering the range I've selected).  As long as I can get it in English, it's open game.