Methods, program products, computer program products and systems for uniquely identifying an individual within a population to the exclusion of all others within the population by comparing data from unique data sources based on the name of the individual for providing a collection of preliminary suspects. An individual search service provider is then searched for additional data relating to the collection of preliminary suspects to locate any potential matches, which are reconciled with data from the unique data sources to locate at least a portion of a unique identifier that may be associated with the individual. The potential matches and portion of the unique identifier are compared with other data records within the individual search data source for locating a complete unique identifier that may be associated with the individual, followed by determining whether or not this complete unique identifier uniquely identifies the individual.