There is something known as the "Wayback Machine" that often can access older versions of various web pages. You can take the URL you are interested in, and put that into the search engine for the "Wayback Machine" at:
http://www.archive.org/web
Once you get your results page, you'll see a kind of calendar, showing when the Wayback Machine ran various archival copies of that web page. In the case of the page you're looking for, you might see that there is a copy of it preserved from 16 Apr 2010, for example, that you can now visit as if you've traveled back in time and view the 'snapshots' it took at that time.
In this case, you might need to try a different year and month, until you get a page that works that was archived and shows the information you need, such as 19 Mar 2004... which might give a clue such as saying, "The Keener ancestry
