1890-1930 in Ondjiva, Omupanda, Karibib, Swakopmund, Präses d. Ovambomission, estate see RMG 1.627; extensive correspondence, annual, station and travel reports, 1890-1936; travel report by Thusnelda Wulfhorst, née. Härlin, 1892; Private letters from August and Thusnelda Wulfhorst, née Härlin to Inspector Johannes Wilhelm Karl Spiecker, 1890-1900; "Osondahe", Monatsblatt d. Finnish Mission, May 1909; Correspondence with the German Consulate and Portuguese authorities concerning property claims in Omupanda, 1920-1927; Obituary for August Wulfhorst by Johannes Georg Heinrich Olpp, 1936; Correspondence with his 2nd wife, Johanna Wulfhorst, née Härlin, 1937-1956
Rhenish Missionary SocietyWalvis Bay s. a. RMG 2.531 a b; View of the station (pencil drawing) and site plan, 1904 (?); annual and conference reports, by Karl Alex. Hamann, Heinrich Vedder, Wilhelm Eich, August Wulfhorst, Heinrich Johann Brockmann and Friedrich Wilhelm (Fritz) Mayer, 1905-1939; Visitation Reports, 1906 1909; Disputes Heinrich Vedder with Commander Selkmann and K. Ritter, Wörmann Line, about captured Hereros, 1906; Ferdinand Lang, Annual Report on Tsumeb, 1909; August Wulfhorst and Fritz, 1909 Martin Jonas Werner, Annual Reports on Otjimbingwe, Karibib and Okahandja, 1921; Heinrich Johann Brockmann, private letters to Director Johannes Warneck, Superintendent Hinrich Johannsen, Director Hermann Berner, 1932-1939; Reports on Nursing Work, 1939
Rhenish Missionary SocietyFive and twenty years of our missionary work in Ovamboland, by August Wulfhorst, 131 p., ms., 1917; "The Great Day in Engela in Ovamboland", report on the 100th anniversary of the Finnish mission of J. B., 6 p., ms., 1966;
Rhenish Missionary SocietyAngola, from 1915 unoccupied, see also RMG 2.535; station and annual reports, by August Wulfhorst and Albert Hochstrate, 1899-1914; protocols of school examinations, 1904-1913; visitation reports, 1906 1910;
Rhenish Missionary SocietyLetters and reports from Omupanda, by Hermann Tönjes, 1899-1900; reports from Namakunde, by Hermann Tönjes, August Wulfhorst, Albert Hochstrate and Karl Sckär, 1901-1914; visitation reports, 1906 1909;
Rhenish Missionary SocietyWhat is the special task of the mission in Oukuanjama besides the main task of preaching the gospel to the Gentiles? Missionary?, Hermann Tönjes, 1903; What can we do for the Ovambo youth and men moving to Hereroland, especially for our parishioners?, August Wulfhorst, 1905; What can we do to educate indigenous helpers?, Hermann Tönjes, 1907; What can we do to make the inhibited church life more fruitful, just as to strengthen the Christian consciousness of individual Christians? August Wulfhorst, 1908; Proposals concerning our churches and our field of activity (independence), Karl Sckär, 1908; Address at the opening of the conference in Omatemba about Col. 3:12-15, August Wulfhorst, 1908; Which external circumstances and aids were the Apostle Paul commandments in his missionary work? Heinrich Welsch, 1908; Brief History of Ovakuanjama, Karl Sckär, 1909; Contribution to the Customs and Customs of Ovakuanjama, Karl Sckär, 1899; The Religion of Ovakuanjama, August Wulfhorst, 1909; The Moral Position of Ovakuanjama, 1909. Apostolic congregations, Albert Hochstrate, 1909; Address at the opening of the Conference in Namakunde on 1Co 1, 26-31, August Wulfhorst, 1909; Why do we not have a branch and what can we do to remedy the shortage? Heinrich Welsch, 1910; Die Kirchenzucht in d. apostolischen Kirche, Hermann Gehlmann, 1911; Die Religion d. Ovakuanjama, with supplements, Karl Sckär, 1912; Does our Ovambo Mission e. Frauenfrage? August Wulfhorst, 1903; Die Sachsengängerei (Arbeitssuche) d. Ovambo nach d. Hererolande und ihre Folgen für unser Volk, Gemeinde u. Missionsarbeit, August Wulfhorst, 1912; The demand of the Chief Mandume concerning the Efundula u. d. Gefahren, d. unserer Gemeinden auswachsen (Teilnahme d. christlichen Mädchen), Heinrich Welsch, 1914; Is e. Wiederaufbau unserer Ovambomission möglich? Heinrich Welsch, 1919; The Ovambo Mission before, during and after the Portuguese War against Mandume, August Wulfhorst, 1916; Report on the Ovambo Mission during the War and its Current Status, Albert Hochstrate, 1920; How Simon the Peter Becomes, Karl Sckär, 1920;
Rhenish Missionary SocietyWuppertal: Kriegserlebnisse e. Rheinischen Missionars, newspaper article, 1935; Erastus Omulundu; Haluodi; Nekoto u. Haischi in Zwistigkeit, 2 versions; Schihepo u. Schalnlange; Haschipala: Memories e. old missionaries of the.., what he heard and experienced under the heathens, pictures from the life of the heathens in Ovamboland German Southwest Africa; Memories e. old missionaries, speech at the mission evening in the mission house Barmen, 1933; Untitled (Memories); Experiences and Memories from Southwest Africa in d. Zeit d. Weltkrieges (1914-18), 2 versions; What the history of the RMG tells us, especially of Southwest Africa; The Portuguese campaign against Mandume; About the Efundula (consecration of a girl) in Southwest Africa; The missionary in the fight with paganism; Kaukungua (Noah), hs. u. ms..;
Rhenish Missionary Society