I'm about to write some example applications and accompanying documents comparing ways of accessing information stored in relational databases. To demonstrate real-life requirements, I need to include a realistic dataset of hundreds of thousands of facts.

Is anyone aware of publicly available, free datasets of that magnitude, of datasets of **human names** with human-level variance, or **hierarchical** datasets of either large **organizational hierarchies**, or large hierarchical, categorized, **product catalogues**? 

Please point me in the right direction, if you are.

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Part 1, human names: <http://timecenter.cs.aau.dk/software.htm>

Part 2, hierarchical data: no answer yet