General Secretariat: correspondence with members of the Bureau (1965): Charles E. Odegaard, Ronald Syme, Silvio Zavala, Hans R. Hahnloser, Tetsuro Yamamoto, Kazimir Kumaniecki, C.C. Berg, Jean d'Ormesson, Jaroslav Prusek; general correspondence
General Secretariat: correspondence with members of the Bureau (1966): Ronald Syme, Silvio Zavala, Hans R. Hahnloser, Tetsuro Yamamoto, C.C. Berg, Jean d'Ormesson, Jaroslav Prusek, Rensselaer W. Lee; general correspondence
Year-end report (1977): report on the budget, correspondence with member organisations on the use of subsidies paid by ICPHS and their use for publications and the organisation of meetings
Year-end report (1979): correspondence with member organisations on the use of ICPHS grants and their use for publications and the organisation of meetings
Correspondence (1962) on ICPHS activities and UNESCO meetings and projects. Documents on the 8th Conference of NGOs linked to UNESCO, 15-16 December 1962
Correspondence (1965) on ICPHS activities and UNESCO projects. Files on the 6th session of the East-West Major Project, the General History of Africa, the Science and Synthesis symposium, the International Advisory Committee on Bibliography, Documentation and Pedagogy (Moscow, 6-9 April 1965)