Above post was me. Three possible starting points to try to figure out a candidate for third most common would be the long blues Floyd Canada sang that Webb reported on in 1915, the "Negro Blues" that Lee White copyrighted in 1912 and then published with some differences in lyrics in 1913, and the various lyrics that John Lomax lumped together for his 1917 article (although he lumped them together creatively, as he acknowledged in the article, at least hopefully he actually had collected them all somewhere as of 1917!). Also, Handy 1926 can be relied on to be quite honest about what he recalled as pre-1920 (which IIRC again included the "too mean to cry").

No point worrying as much about the lyrics Norton made up for Handy's "Memphis Blues" (without Handy's involvement) or Garrett made up for Wand's "Dallas Blues" because Norton and Garrett don't seem to have been in touch with Southern idiomatic blues to the extent that e.g. Lee White and W.H. Thomas were. There's also the different "Dallas Blues" that Marie Cahill sang on record in 1917, although IIRC its writers largely cribbed from Lee White's earlier song.