Hey, the Encyclopedia of Alabama says this about him:
"Information contained in materials written by people who had met him indicate that he may have been born around 1798, but other documents report him as being born much earlier. One of the earliest references to Opothle Yoholo indicates that he attended an 1811 gathering at Tuckabatchee to hear a speech by Shawnee military leader Tecumseh."
Which really doesn't make sense ... he would only have been 13 at the gathering. If born before Davy Cornel's death (1793) he'd have been more like 19+ ... more believable.
They don't say WHAT the reference was for 1798...