Thank you @logandb, @gazumped, @jefito for your responses and suggestions.
Since I am not tech savvy, it is essential that the comparison tool I select be as simple as possible for me to use. Of the ones suggested (Word, Winmerge, Beyond Compare), I have only used Word, therefore my questions refer only to Word. However, one of the other two may be easier for me to work with than Word.
@logandb: "try copying the contents into Word documents and use a progressive 'Compare versions' to resolve the differences."
Although I use Word (Microsoft® Word 2002) daily, I only work with its very basic features, so I am not familiar with the 'Compare versions' element.
I did a search on 'Compare versions' within the Help section of Word and the results were:
“● Compare and merge documents
● Compare documents with the Legal blackline option
● Troubleshoot mail merge
● None of the above, search for more on the Web.”
I read the instructions for "Compare and merge documents" and for "Compare documents with the Legal blackline option". They both refer to "comparing the two documents" when I have four documents to compare, and it is not clear to me which of the two methods I should select for my specific situation.
Do I copy/paste each of the four Notes from Evernote into four separate Word documents? Or do I copy/paste all four Notes into one Word document?