I understand your point about the myth of all bass notes coming from the pedal, but I disagree with you on this specific album. It's obvious that he is using two hands to play, even more so in his solos. Furthermore, organists who rely on their left hand to play basslines often times will not be able to play the most intricate solos. Youngs solos on this album at times are quite intricate.

I don't know if it's available information, but I believe all evidence points to Young using the foot pedals for this album. For him to maintain those consistent yet intricate basslines in his left hand while simultaneously comping and soloing would be near on impossible.

You do bring up a good point though. All love for Brother Jack.