William James Sidis and his Browning - HUB History: Boston history

Sidis selfie with his Brownie (source)

William James Sidis - Geniuses

Studies in Scottish Literature - PDF Free Download

Bio of William Sidis

The theoretical highest possible IQ is somewhere around 250. What might the academic timeline of such a person, if they applied themselves and focused on mathematics, look like? - Quora

Bedouins Project Gutenberg

William James Sidis (1898-1944) - Mémorial Find a Grave

A Tortured Genius. William James Sidis, born (1898) was an…, by Kerianne Sheree

History: Supposedly the Smartest Man in the World Ever!, M.M. Montoya

History: Supposedly the Smartest Man in the World Ever!, M.M. Montoya

William James Sidis (1898-1944) - Mémorial Find a Grave