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Mark Andrew Castillo

Program Coordinator

Ed.D., Higher Education, University of Pennsylvania (ABD)

MSc.R., History, University of Edinburgh

M.A., War Studies, King's College London




Mark Castillo is Program Coordinator for the University of Pennsylvania's International Relations Program. In addition to his regular duties of Program administration and student advising, he serves as Senior Liaison Officer to over 170 colleges and universities that host chapters of Sigma Iota Rho, the National Honor Society for International Studies, which is based in the IR Program.

Mark's interests lie in American social and political histories. Before coming to Penn, he earned two postgraduate degrees in the United Kingdom, from the University of Edinburgh and the War Studies Department of King’s College London. He has authored and taught three iterations of INTR-290-602, “Secret Intelligence in American Democracy, 1776 to Present.” And alongside Frank Plantan, former Co-Director of the IR Program, has co-taught several offerings of "Counterintelligence."

Beyond his administrative duties, Mark is studying for the degree of Doctor of Education at Penn's Graduate School of Education, under the guidance of Jonathan Zimmerman. His forthcoming dissertation is about student politics and the coming of the American Civil War.

Research Interests

  • American History
  • Higher Education
  • American National Security

Selected Publications

"On the Slain Collegians": American Higher Education and the Coming of the Civil War (Ed.D. diss, forthcoming)

Courses Taught

Secret Intelligence in American Democracy, 1776 to Present

Counterintellignece (with Frank Plantan)


  • American Historical Association
  • American Education Research Association
  • History of Education Society
  • Association for the Study of Higher Education