Organization Blue Key

American Historical Association

Organization of American Historians

Society for the History of Technology

American Association for the Advancement of Science

Institute of Electrical and Electronics Engineers

Society for Industrial Archeology

History of Science Society

Carnegie Mellon University (David M. Roderick Professor of Technology and Social Change in the Department of History)

Sigma Tau

Eta Kappa Nu

United States Army (1941-1946)

American Historical Association

Canadian Historical Association

Canadian Political Science Association

African Studies Association

American Society for Legal History

Conference on Latin American History

Phi Beta Kappa

Phi Alpha Theta

National Epilepsy League

International Academy of Trial Lawyers

American Trial Lawyers Association

Alpha Sigma Nu

Delta Theta Phi