1889-1904 in Otjimbingue, Franzfontein, estate see RMG 1.625; letters, reports, station reports, annual reports, 1889-1904; 1 letter from missionary Johann Georg Krönlein, 1889; letter (copy) from Cornelius Zwartbooi with request for missionary, 1891; letter from captain Jan Uichamab with request for missionary for Zesfontein, 1893; travel report from Okambahe to !Goe-!Gams u. nach Vogelkranz bis Zumamas, 1894; Letters by Timotheus Zwartbooi u. Samuel Zwartbooi, 1895; copy e. Correspondence with Major Leutwein concerning Captain David Zwartbooi, 1895; private letters to inspectors of the RMG, 1890-1895; 50th anniversary of the Zwartbooi community, 1895; sample e. new weekly paper "Der Werftbesucher", 1st year 1895;

1881-1960); 1909-1922 in Swakopmund, Outjo, 1929-1953 parish office in Wupperfeld; curriculum vitae, testimonies, application, 1902-1903; letters and reports, 1909-1928; visitation sheet for Outjo, filled in by Praeses Johannes Georg Heinrich Olpp, 1912; Briefe d. Evangelist Nikodemus Kido, Zesfontein, 1914 1921; Report about the journey of Heinrich Vedder and Bernhard Alrich Trey to Kaokofeld, 15 p., ms., 1914; travel report by the district administrator Dr. Schulze for the exploration of Kaokofeldes, former year; negotiations with the Protestant parish of Düsseldorf concerning the takeover of Bernhard Alrich Trey in church service, 1927-1928; negotiations with the parish of Barmen-Wupperfeld concerning salary payments and employment for Bernhard Alrich Trey, 1935-1947; death announcement and obituaries for Bernhard and Anna (Änne) Trey, born Jung, 1960;