Missions-Bauhandwerker, 1907-1910 in Berseba, Lüderitz Bay; curriculum vitae, application, certificates, 1906-1907; instruction, 1907; letters and reports, 1908-1910;

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

1900-1936 in Walvis Bay, Steinkopf, Concordia, Lüderitzbucht, Warmbad; letters and reports, 1900-1936; cover letter, 1893; curriculum vitae of Mrs. Maria Nyhof, née Stotijn (copy), 1903; letter of Carl Ludwig Hermann Hegner to Hermann Nyhof about conditions in Warmbad, 1904; overview of d. Distribution of the Bondels on the various squares in the Warmbad district and sketch of the Bondels Reservate, 1908; Count von Hageneck, request for repair of the tower roof chair of the church in Warmbad, 1908; obituaries for Hermann Nyhof, 1936; correspondence with Maria Nyhof, née Stotijn, 1937-1962;

1912-1954 in Keetmanshoop, Lüderitzbucht; Letters and reports, correspondence with individual personalities of the mission leadership, 1911-1969; curriculum vitae, application, certificates, 1910-1911; Protokoll d. Sprachexamens, 1913; "Gau-Sari-Aob", ed. Friedrich Hermann Rust, vol. 18, no. 3, 1931; Negotiations on connection with d. state pension funds, 1930-1932; death announcement and obituary for Mrs. Agnes Rust, née Sapel (mother) and photo from father's grave, 1934; death announcement and obituary for Mrs. Emma Rust, née Wandres, 1968;[correspondence especially with Fr. Siegfried Groth 1964-1978 and Gustav Menzel 1970-1974 s. VEM archive];

1901-1930 in Ondjiva, Omupanda, Namakunde, Lüderitzbucht, s.a. RMG 1.477 manuscript about Ovamboland; letters and reports, 1901-1950; curriculum vitae (3 versions), applications, medical certificate, 1891-1901; letter from Wilhelm Heumbo, Ondjiva, with d. Request for more teachers for Ovamboland, 1908; annual report of the Ovambo community Lüderitzbucht-Diamantfelder, 1919; death announcement for Karl Sckär, 1950; correspondence with the Sckär family, 1958-1964; death certificate for Wilhelmine Sckär, née Kremer, 1968