Historical Photographs of China album reference: Hv46. Rev. Claude L. Pickens, Jr.'s trip to northwest China, part 1. Grave of Ma Yuanchang, Hsüan-hua-kang, near Zhangjiachuan, Gansu.
Access to original photographs and albums in the Rev. Claude L. Pickens, Jr. Collection is restricted. Photographs and images from the collection may be reproduced only with written permission. Contact the Harvard-Yenching Library for permissions and fees. Further information about the library and ‘The Rev. Claude L. Pickens, Jr. Collection on Muslims in China’: http://hcl.harvard.edu/libraries/harvard-yenching/collections/pickens/