I was remembering that it wasn't that he returned any money, but that he wasn't paid 3/4 of it. I have never, or can I find, anything about returning the money. "Not debatable is that Jackson clearly did accept the money of gamblers ($5000, after demanding $20,000, according to Cicotte) and having the batting star's name mentioned in connection with the fix gave the scheme credibility. Jackson admitted in his 1920 grand jury testimony to accepting the money. In his 1920 "confession," Jackson would testify that he was promised $20,000 for his participation, but only got a quarter of that amount." http://law2.umkc.edu/faculty/projects/ftrials/blacksox/blacksoxaccount.html