Geospatial Services Librarian
Skillman 120


  • MLIS, University of Pittsburgh
  • MS (Geography), Penn State University
  • BA (Interdisciplinary Studies), University of Maine

John consults on geographical information systems (GIS) in a wide variety of knowledge domains.  He offers research, reference and instructional support for all aspects of geospatial information technology at the College, including desktop and online ArcGIS applications.  He brings extensive experience with data visualization including map-making to projects including Pure Food and Mapping Memories of Madagascar, among many others.  John consults on the discovery, acquisition, and processing of maps and geospatial data in all formats.  He offers support for courses using maps and GIS.  And he partners with faculty to create geospatial data and produce maps for books and other publications.

Selected Publications and Presentations

Clark, J. H. & D.W. Holdsworth. (2018) “Wood Pulp and the Emergence of a New Industrial Landscape in Maine, 1880 to 1930.” Maine History 

Clark, J. H. (2017) “Historic Georeferencing: a GIS framework for archival research.”  Pennsylvania GIS Conference, State College, PA.

Clark, J. H. (2016) “The Long Term Preservation of Digital Historical Geospatial Data: A Review of Issues and Methods.” Journal of Map & Geography Libraries 12(2): 187-201.

Faculty publications featuring John’s cartography:

Hendrickson, Brett. 2017. The Healing Power of the Santuario de Chimayó: America’s miraculous church. New York: New York University Press.

Rosen, Deborah A. 2015. Border Law: The Boundaries of Nation in the Early Republic. Cambridge: Harvard University Press.

Wilson-Fall, Wendy. 2015. Performance of Difference: remembering Madagascar in the Afro-Atlantic world. Athens, OH: Ohio University Press.

Sanborn, Joshua A. 2015. Imperial Apocalypse: the Great War and the destruction of the Russian Empire. Oxford: Oxford University Press.

Shelton, Joel T. 2015. Conditionality and the Ambitions of Governance: social transformation in Southeastern Europe.  Basingstoke: Palgrave Macmillan, 2015.