Great book tip, thanks!
Here's a great website that has Ellsberg's letters to his wife about the whole mess.
Ellsberg wrote a slew of books. Anoether good one is "On the Bottom" - raising the S-51 after a collision off of Block Island, NY in 1925. Neat section on how they took a thick piece of brass rod and, out on the ocean, turned it into a vastly more efficient nozzle for burrowing under the sub. And then we have the ad hoc repair to a pump that was still in place years later.