william_purdom_04 January 25, 2019January 25, 2019 Matthew Caulkins, Web Applications Program Manager Previous Next Kansu charcoal carriers seated in front of a building with their charcoal baskets at their feet. Tao River Valley, Gansu Sheng, China. June 1911. Photographs of William Purdom – 1909-1912. Eastern Asian Historical Photograph Collections, Arnold Arboretum Horticultural Library Archives. Copyright © 2003, President and Fellows of Harvard College, Arnold Arboretum Archives; all rights reserved. Contact repository for permissions and fees.