Nancy: Thank you for your prompt reply.  Yes, I am Wikiuser100.  I did not realize that prior to posting my note to you I had disabled my cable connection (to run anti-spyware software while offline) and had not logged back in when it was reconnected (and used the four tildes as a signature when sending the above note).  The IP address display was a tip-off after the fact.
Following your link I am indeed able to locate Before and After versions of the page in question.  However, is there some format that highlights the actual changes one makes so they can zero in on them?  As it is all one can do is comb each variant and hope to find anything from a redundant blank space having been eliminated on up.  Or am I missing something?  Thanks in advance for your help.