J.C. Bukre: History of Walvis Bay, 1952; G. Meyer: Die Sendlinggemeente Kommaggas, 1953; J. Metzkes: Die Missionsgemeinde Saron, 1945; J.J. Muller: Clanwilliam, 1952; H. Driessler, History of the Rhenish Mission in South West Africa, 1956;
Rhenish Missionary SocietySouthwest Africa - its peoples & history
Rhenish Missionary SocietyChronicle of the Missionary Station Warmbad, Namaland, Southwest Africa, Missionary Hermann Nyhof, 26 pp., ms., 1929; Documents on the Ownership, 1896-1921;
Rhenish Missionary SocietyProtocol of the Founding Assembly with Statutes, 1822; Sermon delivered at the Foundation Festival of the Mission Society of Wesel, July 2, 1823 by the Superintendent General Roß, 1823, Dr.; Summary Report of the Clevic Provincial Bible Society of Wesel, Dr.., 1829-1833; Correspondence and proof of gifts of love, 1822-1845, 1906-1942; contributions to the history of missionary life in the Lower Rhine region 1820-1850, essay by Lic. Delius, October 1940; beginnings of the missionary society in Wesel, essay by Lic. Müller, Diersfordt, 1942
Rhenish Missionary SocietyTransmission of recordings by Johann Georg Schröder, 1873-1881, ms.; list of chronological data, 1842-1880; report on the 50th anniversary of d. Herero Ovambo Community of Windhoek, 5 p. ms., 1958;
Rhenish Missionary SocietyEstate:; diary entries from the years 1912-1914, 1918, 1919, 1926-1927 1 issue 1930; The Gospel of Mark in Oshikuanjama, chapters 1 and 2 (beginning) and eight short stories from the Mission, issue, ca. 1903; Mission and Colonization, 2 issues, 1905; Das Ovamboland, issue, o. J.; review of 20 years of mission work under d. Ovambo, c. 1910; sermons and reports about Ovamboland, c. 1910; Southwest Africa - country and people, c. 1910; pictures from the mission work in Ovamboland, c. 1910; about faith and superstition of Ovambo and others.., o. J.;
Rhenish Missionary Society