That is weird. They have a list of the results (https://www.python.org/nominations/elections/), lists of boards going back a few years (https://www.python.org/psf/board/), but no details. Presumably they post their official Bylaws/founding documents somewhere that they filed with the state, and it'd be in there?

FWIW diversity is important regardless of their website quality. Perfection is the enemy of improvement, IMHO.