See http://community.logos.com/forums/p/29653/219554.aspx#219554
It would be nice if Logos provided a prebuilt filter that provided the additional information for names and places to be unique as in the example above which handles the multiple Herods. It seems doable based either on a Bible dictionary or the LCV or the Biblical People / Places / Things. The biggest hurdle would be ensuring that the broader canons are supported equally.