I hope someone can help me identify a story that has haunted me since I was a young adult. I believe it is a Bradury story, very short as I remember it, and involved people buried in coffins more or less communicating through morse code by tapping on their coffins. I had thought it was a story in Dark Carnival, but I read it in some collection. Strange how some tales can stick with you, as this one I have tried to identify for over 30 years.
I think the story you to which you refer may be "Interim", as it originally appear in DARK CARNIVAL (Ray later re-used this title for a different story). This short story in DARK CARNIVAL involved the dead communicating among themselves about a resident of their cemetery giving birth.