1903-1951 in Otjosazu, Franzfontein, Outjo, Okombahe, Usakos, Swakopmund; letters and reports, 1902-1950; curriculum vitae, application, medical certificate, 1895-1902; sketch of a mission property to be acquired in Outjo, 1905; death announcement for Mrs. Helene Brockmann, née. Upmeyer, 1935; draft e. Präsesinstruktion with notes by Heinrich Vedder, 1938; Kassenbericht d. Generalkasse Südwestafrika, 1947; obituary for Heinrich Johann Brockmann 1951; obituary for Dora Brockmann, née Hollerbaum, 1954;

Missions-Handwerker u. Farmer, 1907-1913 in Usakos, Grootfontein, Gaub, Korab, Omaruru, Outjo; Letters and Reports, 1908-1913; Correspondence in the dispute August Heinrich Johann Dresselhaus, 1914-1923; Court Acts August Heinrich Johann Dresselhaus ./. RMG, 1921; Instructions for August Heinrich Johann Dresselhaus, 1907 1912; Zeugnis d. Agricultural Winter School Vohwinkel, 1914; Curriculum Vitae, 1906;

1939-1973 in Usakos, Lüderitz Bay, Bethanien, Omaruru; personal documents, also by Anny Kuhlmann, née Abke; letters and reports, among others from the internment camp Andalusia, 1940-1945

Missions-Farmer, 1912-1941 in Okahandja, Omburo, Okombahe, Usakos; Curriculum Vitae, 1904; Curriculum Vitae, Application, Testimonies, 1912-1913; Instruction as Mission Farmer, 1913; Letters and Reports, especially from Omburo, 1913-1921; Examensbericht d. Missions-Seminars, 1928; Correspondence from Usakos, 1931-1939; Message about internment, 1939; Report about the death of Ernst Wilhelm Römer in Kimberley and obituary, 1941; death certificate and obituary for Mrs. Rosa Johannette Römer, née Huppert, 1956;