Thanks for your concern Steve but no I would never do that!
The non-breaking space does uniformly misbehave, but the idea of a non-breaking space is that it looks exactly like any other space on the same line. So if you put a non-breaking space between S. Davis (so that they always stay together), in LTC Goudy it would look more like S.Davis and appear wrong.
We use the non-breaking space for things like ‘vol. 10’, ‘p. 10’, ‘no. 1’, ‘P. C. Snow’ etc. and is handy for turning words over when correcting proofs.
To put your mind at rest that I’m not doing anything silly, I have well over 40 years experience in typesetting (originally I was what was known as a compositor), so I’m quite an expert to be honest. I was typesetting before Quark and InDesign (one system (Interset) even in the 1980s did tables so much better than Quark or InDesign and automatically created them perfectly), and I still work at least 10 hours everyday in InDesign on complex books and have my own typesetting company.
Having said all that – I still learn something new nearly everyday.
Cheers
John