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

1914-1956 in Swakopmund, Okahandja, Otjimbingue, Windhoek; correspondence - also with Ella Werner, née Meyer, 1913-1963; curriculum vitae, certificates, military passport, 1905-1906; ordination certificate, 1913 work report from Haiger, 1930; Memorandum of Missionary Martin Jonas Werner, Windhoek, 1954; correspondence, 1959-1969; missionary Fritz Heinrich Ludwig Harre u. Father Siegfried Groth with Werner, 1959-1969; Pastor Gustav Menzel with Werner, 1967-1969;

Chronicle of the Missionary Station Warmbad, Namaland, Southwest Africa, Missionary Hermann Nyhof, 26 pp., ms., 1929; Documents on the Ownership, 1896-1921;

1884-1929 in Warmbad, Windhoek, Keetmanshoop, Lüderitzbucht, Präses d. Nama-Mission; letters, reports, station reports, annual reports, statistics, 1884-1929; private letters to Inspector Ludwig von Rohden, 1885-1886; in 1.623a pages 19-21 are missing, probably 2 watercolours by Blyde Verwacht u. !Nabis im Gei!from Karl (Carl) Friedrich Wandres, ca. 1887; - Map overview of the sold places between Keetmanshoop and Warmbad, ca. 1888; Report of the elders Johannes Witbooi, Warmbad, about his evangelization journey in the area of the Bondelzwarts, 1889; Orders to Friedrich Kämpfer and Friedrich Schindelin, 1888-1889; Declaration of honour of the captains d. Bondelzwarts for Karl (Carl) Friedrich Wandres, 1891; Report about the sermon journey of two elders of the Warmbad community, 1893; Timetable of the Imperial German Reich Post Keetmanshoop - Steinkopf, 1894; map by !Nabis M. 1: 300 & projected mission station, 1896; private letters to Inspector Johannes Wilhelm Karl Spiecker, 1886-1898; Three visits to Rietfontein (Kalahari desert), essay, 1898; About the use of alcohol in our churches, 16 p. hs, 1898; Roman tissue of lies, 1900; Memorandum on land matters in Windhoek, 1903; Festivities for the inauguration of the Mission Church in Windhoek, May 1903; Native Census of Windhoek, March 1903; 1 copy of a booklet with the name of the church. "German Southwest African Newspaper", No. 2, January 1903; 1 copy "Landeszeitung für Westafrika", No. 112, September 1920; copy of a letter by Hendrik Witbooi, July 1889

large drawing of the church in Walvis Bay by J. C. Pingel, c. 1910; plans for the reconstruction of the mission station, by Ludwig Koch, agent of the RMG, no year; statistical questionnaire, 1946-1969; correspondence for the church in Walvis Bay, 1960; thanks to Kirchengemeinde Bielefeld for donation to the kindergarten, 1965;