How to get dwarves to find missing dwarves
I had two of my mining dwarves mine a few levels down, and they died. I can see them by going down and their corpses and picks are lying there, making miasma. There are ramps going down to where they are, but none of my dwarves are hauling them up. I need the picks badly.
I figured it out. The dwarves and their picks were marked as forbid, for some reason, so I just went to them with k and reclaimed them.