Great point! I added a shoutout to Dave, who actually graciously answered an email from me years ago when I was first setting up the webpage where you can play all the original games.
Lexington high was the place that Seymour Papert's group at MIT did their field work with Logo. I vaguely remember that this might have been due to Cynthia Solomon who was then, of all things, Marvin Minsky's secretary, as they were called back then.
IASTR that Brian Harvey (also of Logo fame and now a longterm professor at UC Berkeley) was involved, though it was before my time and I may have my wires crossed. But he would have been an amazing teacher for a bunch of high school students!
Wow! This was the first programming book I had. It took a bit of work to translate the programs into Commodore PET BASIC, at least for young me anyway.