The highest IQ in history

Google the phrase "highest iq in history" and you will get an interesting list. A mix of historical figures (with remarkably precise IQ assignments) and complete unknowns.

But the highest slot is reserved for "William Alfred Quannigton" at 300+. Supposedly he taught himself over 3 years of college calculus in a day when he had just turned 4 years old. At 9 he designed a workable time machine. And so on...

So maybe this is a smart guy, or perhaps just a "wilful indolent IQ anagram". You decide.