RJ,
Thanks for the answer.
You stated, "Now, during discussion and deliberation, some director may observe that some contractor has a bad reputation for always showing up drunk, or is someone's kissing cousin, etc. I can't imagine such personal observations are noted in official minutes. Can you? If this is a matter of how things might be done on official club minutes and business documents, well I'd be stunned."
Before I started researching in club's board minutes I also would have been stunned. I no longer am. Let me give you an example of a board minutes note from an unnamed club in a very different part of the country than SFGC. In 1943, the notes atste that a board member "noticed that we have minorities working for us." He then put forth a motion to have the club fire all minorities and have as a policy to only employ caucasions. The vote passed unanimously. Today this club is filled with minority members who would probably be quite stunned to learn of this.
You also stated, "Am I wrong, or naive? Why not have a current club secretary redact sensitive names and business matters days long ago, yet offer historians documentation of the club's key architectural and historical events?"
In SFGC's case that is exactly what happened and the result is the Tillinghast Illustrated article on the evolution of SFGC.