First of all, I'm sorry for your loss. I'm glad you can express your feelings artistically, that is very healthy. Now on to criticism.

It's effective, I'll give you that, but only until you start repeating the name "Joe." I realize that was his name, but "Joseph" has a more poetic sound to it, don't you think? Or perhaps just lay off the repititions.

"Under those stones" works nicely, but your style is kinda choppy. With the emotion you wish to convey, it might make more sense for your writing to reflect your feelings. Do you really feel like Hemingway about this? If so, carry on.

Peace, brother.