Calling all poems/stories/essays about death

I might be teaching a course this fall on writing about death and grieving. I'm in the process of gathering up ideas for readings--ie published stories, poems, or essays that deal with the subject. Here's where I turn to you, dear readers: to pick your brains. Any idea are most welcome! (One caveat: they have to be relatively short, ie, it's not helpful for me to get a list of novels that focus on death or dying.)

Thanks in advance!