After some sleuthing, I figured out the answer which is below (highlight to reveal):
Alan Turing and the Analytical Computing Engine (ACE)
Of course, that wasn’t then end of it. Once I replied with the answer, I got this in return:
Same question - Who was he and what was he building?
Attached was this picture:
It’s one of those old-fashioned punch cards. How happy am I to not have to use those for code. Okay, get cracking.