History of those lost to history

Can a dictionary of national biography include someone whose name is unknown, whose birthplace and deathplace are unknown, and of whom no actions or activities were ever recorded? There's no portrait either.

You wouldn't think so. It's certainly a bit of a stretch. But the Dictionary of Canadian Biography did it last week. It seems to break all the conventions of the biographical dictionary genre. 

But it works. Here's Harvey Amani Whitfield's biography of "Name Unrecorded."

Maybe there are some analogous cases. The DCB long ago published a biography of a ghost. That one worked too.