I'm trying (unsuccessfully) to remember where and when I heard Divers and Lazarus. I know that the voice was that of an an oldish, Southern man, and I think with banjo.Depending on the scansion of the line, "Divers" was sometimes "Diverus". Or actually, the impression I had and have is that it would be "Diverus" and sometimes elided to "Divers" to fit the scansion.
The tune as I learned it was somewhat like but not identical to Star of the County Down.
Dave Oesterreich