On the library homepage, click on the Advanced Search link.

Change the All fields pull down to Subject Terms and enter the name of the author you are researching into the search box.

Tip! You may still see a few works written by the author within your search results. This is a hard search to make perfect. If you limit it too much, it will filter out too much. But by searching this way, you should have a helpful list of results with articles and books written about and discussing the author and/or their works.