arlatx is correct. This is a cover page because it is the "index to names". I have not come across an index yet and I did not see the forest for the trees. The index lists every name in the book with the page numbers. We are not keying the index, all of the names would be keyed on their separate pages by whoever downloaded that page.
See the first additional cover page example on the wiki.
I'm sorry for any inconvenience my earlier reply may have caused you. I removed the previous reply since it is not correct.