Correspondence; Statute of the Missionary Literary Publishers Community, 1929; Report on the state of cooperation between government and mission, concerning hygienic matters (in Usambara), Dr. Samuel Müller, 1929; "Church and people in the mission experience of the present, by Dr. W. Freytag, about 1935; "African Christians take responsibility for the young communities of M. Weber, 1941; "Educational work in an African missionary hospital of M. Weber, 1941; Essays by African writers (translations into German), 1942-1943; correspondence on financial and insurance issues, burden sharing, etc.; proposals for a joint photographic work by the German Mission Societies by F. Harre, 1950; statement on "Rheinfeldener Bericht vom W. Freytag, 1946; "Theology, Christ and the Missionary Obligation" by John A. Mackay, 8 pp, Druck, 1951; "The Calling of the Church to Mission and to Unity 5 S., Druck, 1951; "The Challenge of Cummunism by Charles Malik, 4 S., Druck, 1951; "Financing mission work from church funds? 6 S., ms., N. N., about 1957