Do you think Mr. Isaac was ever guilty of "pillow talk?" There's got to be some woman (or man, or whatever) out there that he's confessed his secrets to. I wonder if someone could get them to talk?
Here's another possible source of information: Mr. Fair or someone close to him. Fair, Isaac and Co. was "founded in 1956 by mathematician Bill Fair and engineer Earl Isaac." It's hilarious to think that the word "Fair" is something other than a name--perhaps a tribute to the fairness (???) of the FICO formula--but it really is a name.