It's interesting that Robert Johnson thought the 38 Special was "most too light". Perhaps he was corresponding with Elmer?
Here is a transcription of Johnson's lyrics, from my post of six+ years ago, in a thread in this forum: 32-20 thread. I sent for my baby, and she don't come I sent for my baby, man, and she don't come All the doctors in Hot Springs sure can't help her none And if she gets unruly, thinks she don't want do If she gets unruly, and thinks she don't want do Take my 32-20, and cut her half in two She got a thirty-eight special, but I believe it's most too light She got a thirty-eight special, but I believe it's most too light I got a 32-20, got to make the camps alright . . . I mentioned in that post that the my favorite variation of the song was by the Flamin' Groovies. It has since been posted in youtube: