United Nations Oral History Collection
Interviews were conducted by United Nations staff and Yale University researchers on events surrounding the founding of the Organization, the writing of the UN Charter, and various international crises.
One of the interviewees is Canada's former UN Ambassador Paul Heinbecker. He discusses his experiences on the Security Council.
There is an earlier Library Boy post related to the history of the UN from October 30, 2008 entitled United Nations Launches Online Audiovisual Library of International Law: "(...) the Historic Archives contain documents and audiovisual materials relating to the negotiation and adoption of significant legal instruments under the auspices of the United Nations and related agencies since 1945".