Comprises:

'Marealle, Chief Thomas', correspondence with Marealle II, paramount chief of the Chagga people, Tanganyika (later Tanzania), and related papers, 1952-1960

'Martin, W.H.', correspondence with Martin, journalist, and related papers, 1930-1932

'Mas'-'Maz', 1924-1968, including materials relating to R.J. Mason, Assistant Director of Education, Northern Rhodesia (later Zambia); Henry J.P. Mathews, President of the British Empire Service League; Elind W. Mathu, Member of the Legislative Council of Kenya; C.J. Matinga, Chairman, Nyasaland African Progressive Association; and Col. Marcuswell Maxwell, Member of the Legislative Council of Kenya

'Mason, P[hilip]', correspondence with Mason, Director of Studies in Race Relations, Royal Institute of International Affairs, and related papers, 1953-1960

'Maudling, R[eginald]', papers relating to Maudling, Secretary of State for the Colonies, 1952-1970

'Mayanja, A[bu]', correspondence with Mayanja, member of the Executive Council of the Uganda National Congress, and related papers, 1953-1959