Unnamed Unidentified Voice

In "Hand upon the Waters" someone informs Stevens about both Lonnie's funeral and Joe's whereabouts on the day he was buried. There is good reason to think this person is someone from Frenchman's Bend, and it may even be the coroner whose telephone call first brought Stevens into the story, but all the text provides is a voice which speaks in correct (i.e. not vernacular) English and with unmistakable if unsentimental sympathy for Joe's loss.