This is the JMU Math & Stat Department Family Forest (though it actually contains a circuit), according to the Mathematics Genealogy Project (as of Feb. 1, 2013).

NOTE: if two advisors are listed for a particular mathematician, I have included only the first one (exception: the two people in the department for whom two advisors are listed).

The vertical position of a name corresponds (at least approximately) to the year of her/his doctorate.