Just for good measure, here's the genealogy graph that I did for the Sheffield Pure Mathematics department. It was reasonably accurate as of April 2006 but since then there's been a few changes (including myself!) and so it is no longer absolutely correct. The project stalled a little as I wanted to get a connected graph but a couple of people in the department were difficult to link to the rest.

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This runs as a Java™ applet. The graph is quite large so it takes some time to load. You need to move your mouse into the window before it displays anything. A menu with different viewing options appears on the left-hand side of the display. I haven't figured out all the intricacies of the controls yet so I find that if something stops working it's best to click the Refresh button on my browser or, if something really weird happens, the Home button.