There are comments in the source of the website, explaining most of what people have asked here, including where he has taught, his organ, mistaking his identit

There are comments in the source of the website, explaining most of what people have asked here, including where he has taught, his organ, mistaking his identity for a football coach and bird watcher, and a plea to not be emailed that Donald Knuth is still alive. On the other pages there appears to be more information available about passages chosen, and other fun bits. Check it out.