I was hoping you would share some of your expertise on this thread. I always learn something from your classic posts.
Regarding a couple of the songs you've posted here, I've heard other artists who covered them later (such as Elvis & Ray Charles), and some I've heard a different song with the same title (like this song - "Don't Let the Sun Catch You Crying"), but most of them are new to me, and it is great to encounter them.