Thanks for posting this, Jim -- lots of good advice and personal experience from respondents.

And it's persuaded me to make a real effort to regain my voice, lost to past stress and (silent) acid reflux which scarred my vocal cords. I had some speech therapy and got a lot of my voice back -- reliable pitch, better breath control etc. -- but had lost the joy of singing.

SO, I'm going to accept the challenge of actually doing the work of voice training (as you suggest) and I'm sure your pal Bob Blair will keep me on target.
It used to be a natural gift, but will now need exercise, like so many things!