Six letters from Dar-es-Salaam, 1895-1896; "A "Eben-Ezer of the Lutindi lunatic asylum in western Usambara, history of Lutindi for the 25th anniversary recorded by Wilhelm Bokermann, 34 p., ms., 1929; letters of thanks Ronicke to donors of the Nazareth Missionary League; death announcement for Friedhelm Bokermann, died 1944; correspondence with Wilhelm Bokermann, 1929-1946

Manuscript of a story about the conversion and baptism of a young man in Usambara, East Africa, based on the sources of Johanssen, Meinhardt and Wohlrab in the News of the Bethel Mission, by Pastor em. Friedrich Kuhlgatz in Friedrichshütte, 53 pp.

Letters and correspondence, 1898-1909; Personal correspondence by Dr. Philipps and a letter by Pastor von Bodelschwingh, 1911, and a newspaper clipping, 1912; family letters, 1914-1919; testimony for Pastor Rösler, 1921; letters from African Christians to Rösler "New Letters from Usambara, 1922

[see also Transcription in I. Ludewig, Leipzig 2001 = Library 2-05437]

Letters and diary reports from Becker & Döring