kennonward

Not accurate, if by “their copy” you mean the WordPress index.php file. Place all the WordPress files in the sub-directory, make sure the addresses in the WordPress dashboard include the sub-directory in the path, and it will work just fine.

In the dashboard In the general tab I have the wordpress address (URL) as http://www.erivynn.com/wordpress
the site address (URL) is set to http://www.erivynn.com
In the Reading Setting tab I have the front page as HOME and the post page as Blog Page

All of the wordpress files are in the wordpress directory.
The Home page is a permalink defined as http://www.erivynn.com/
and the Blog Page is defined as http://www.erivynn.com/blog-page/
With my copy of index.php in the root directory the system shows my main page as the blog page. With the index.php supplied by wordpress it will show the blog page as the blog and the main page.
So my question is very simple How do I set up wordpress to be accessed by my site written in PHP?
If there is another place to define directories other than the Pages tab in the dashboard. I would like to know where they are what I have to set them to to make wordpress work on my site.

Thanks to all for your assistance