Correspondence with the European Elected Members Organisation and European leaders in Kenya, the Tanganyika European Council, the Capricorn Africa Society, L.S. Glover (European Advisory Council, Bechuanaland (Botswana)), and Huggins concerning matters of inter-territorial interest, constitutional developments in Tanganyika (Tanzania) (1951), constitutional advance, the possible inclusion of (all or part of) Bechuanaland (Botswana) in the Federation, and the South African dimension, 1951-1956