New article by Mark Schurr, Madeleine McLeester, and Jamie Countryman Published: September 24, 2021 Author: Eileen Barany Professor Mark Schurr, Madeleine McLeester (former ND postdoc currently at Dartmouth College) and Jamie Countryman (graduate student at the University of Chicago) recently published an article that presents a new approach to the difficult problem of estimating prehistoric human populations.