Correspondence, minutes, agenda etc. relating to the Conference of Governors of the East African Dependencies, the Royal Commission, and the Joint Select Committee; Colonel Walker's journal (1922-1936) which includes details of his work on the Committee of Imperial Defence and the Conference of Governors; papers about Lord de la Warr's mission to Ethiopia.

Transcript of an interview (1972) with Walker relating to his time as secretary to the Conference of Governors of the East African Dependencies (1925-1936). Interview conducted by Dame Margery Perham and John Tawney. Typescript.