Looks like a good source you've found. I did a search for a Katherine Worden, to see if maybe it was a married name, and found what looks to be a duplicate profile for the Unknown one you asked about -
https://www.wikitree.com/wiki/Warden-1215
(The only Katherine Worden I found is the wrong generation and tied to the Wordens who immigrated to New England.)
You might want to adopt the Unknown profile and propose a merge into Worden-1215.