Using older versions of Outlook for Mac in business environments
Solved! Thanks to all for your help.
I followed JohnWangs suggestion (above) and exported my Calendar (only) into a OLM file. I then imported that calendar only OLM file, which placed my calendar in an off-line, searchable (via spotlight) format. The Calendar was imported to the 'On My Computer' folders.
Next was the cleanup/delete process from my on-line calendars.
Using VMFusion, I installed a Windows VM on my Mac (VMFusion). I installed outlook into that VM and was able to delete all the entries in my calendar, without sending cancellations to everyone. That worked perfectly. After letting the Windows Outlook (2011) sync with Exchange, everything I deleted was removed from the Exchange server, without sending cancellations to everyone on every calendar entry.
I thin shutdown the Windows VM, loaded Outlook (15.27) on my Mac and let it sync with the Exchange Server.
Again, Windows to the rescue (sadly for Mac users).