1907-1920 in Karibib, Okahandja, from 1924 parish office in USA among others in Renville, Min.; curriculum vitae, application, certificates, 1898-1901; letters and reports from Karibib and Okahandja, 1907-1921; testimony and recommendation, 1923; letters from North America, 1924-1959; correspondence with Mrs. Marta Siekmann, née Garbers u. d. Söhnen Gene u. John, 1950-1963;

Curriculum Vitae of Otto and Lydia Milk, née Grüber, 1938; Ordination Certificate, Instruction, Vow of Deputation, 1938; Correspondence for Exams and for Employment, 1938; Address by Praeses Koch at the Ordination of Otto Milk and Hassenpflug, 1938; "Der Missions Gedanken bei Vater Bodelschwingh von cand. theol. Otto Milk, 26 S. ms.., about 1937; correspondence and letters of friendship, 1938-1939; correspondence with the Milk couple during their internment, 1940-1947; correspondence during their work in Wupperthal with Clan-william in Kapland (South Africa), Keetmanshoop and Okahandja (Southwest Africa), also annual reports and Letters from Friends, 1948-1954; Letters and reports from the Paulinum in Karibib and Otjimbingue, especially from Singwochen, 1955-1966; "Omahungi (ein Gemeindeblatt), Druck, 1955-1958; 25 letters of thanks from Paulinum students to Pastor Curt Ronicke, 1958; Korrespondenz zur Altersversorgung der Eheleute Milk, 1937-1970

1927-1956 in Karibib, Outjo, Berseba, Keetmanshoop; Letters, reports, correspondence with various personalities of the mission leadership, among others with Sieg-fried Groth, de Kleine, Fritz Heinrich Ludwig Harre, Gustav Menzel, 1925-1946; application, testimonies, curriculum vitae, 1913; ordination certificate, 1927; experiences on e. Farm trip to Noitgedacht and Otjimbojo, 1927; curriculum vitae, application, medical certificate by Manfred Neumeister, born 05.12.1926, son of Wilhelm Neumeister, 1945