Organization Japan Society

Society of Authors in Scotland (honorary secretary)

Writers' Monthly

Solomon R. Guggenheim Museum

Weatherhead East Asian Institute

International Commission for the History of Historiography

American Historical Association

Association for Asian Studies

Society for Historians of American Foreign Relations

Asia Society

Council on Foreign Relations

Japan-U.S. Friendship Commission

CULCON

Phi Beta Kappa

National Economic League

National Society of Prisoners and Prison Labor

Twentieth Century Club

World's Center for Women's Archives