All the content in my old HTML pages has now been moved to these WordPress pages. Every old page has been reduced to an automatic transfer to the appropriate WordPress page. The outstanding problem is that if you revisit an old HTML page your browser may not reload the page with the updated version; i.e. you will just see the old page stored on your computer. By clicking on the refresh button in your browser, the new page will load and transfer you.
I have now rewriten my old PHP pages to make them work on this new server. I still need to make a few tweaks to the code and then I will update the database.