Systems and methods for generating a viewer-specific visitor history for a location are provided. In particular, a visitor history for a particular viewer and location can indicate a total number of users who have visited the location and can specifically identify one or more of a set of users using a facepile. The set of specifically identified users can be those users that have an associative link with the viewer and that are also associated with at least one location signal for the given location and for which the particular viewer is a permitted viewer. Thus, location signals having varying scopes of visibility information can be aggregated across a plurality of different web-services to provide a single, unified visitor history for a particular location and viewer, all while respecting user-specified visibility information.