Frank S. Owen, Ndola, Northern Rhodesia (Zambia) and Federal Ministry of Home Affairs, etc.: Northern Rhodesian (Zambian) and Federal politics; Northern Rhodesian (Zambian) constitutional discussions (1958); other constitutional matters; Federal Party concerns; elections; disputes and criticisms of Roberts's leadership (1959); views of Macleod; Nyasaland Railways, Jan 1952-Dec 1963