Did some further searching and found a solution. For anyone that may encounter the same problem here is what I learned. I had changed themes and the widgets I wanted were lost somewhere between my old theme and my new theme, but my new theme recognized them as being there. All I had to do was switch back to my old theme for a moment, delete the widgets, save and then reactivate my new theme. Tada! All was as it should be. Hope this helps others.