Thanks for the direction! I assumed that was the way I was going to have to go.
I had rebooted the TIme Capsule and noticed that there was no indication of any previous backups. I did the verify and when complete it showed backups going back three years but they couldn'd be accessed; so, I assumed I'd have to erase the TC and strat over. Erasing now!
I appreciate the advice about backing up to another hard drive and have done so in the past, only to have the external drive crash. In my experience in IT over the years, I've had at least three external hard drives go "belly up" and relegated to the scrap heap. The other obvious problem is if you really want to be safe, you have to always do both form of backups at the same time in order for everything to remain current.
The draw with Time Machine and the Time Capsule was that one could back up devices for incremental backups wirelessly and most importantly on a seamless recurring basis.
I really, really appreciate the advice and will post results once the process is complete. My only hope is that this isn't a case where the drive in the Time Capsule will be the 4th one to go south.