1875-1911 in Omburo, Omaruru, re-emigration 1914-1915 to Tenerife, after months of imprisonment back to Germany, home service, cf. also RMG 1.613 c; letters, annual reports, station reports, travel reports, 1871-1915; essays:; Eine Totenfeier bei d. Ovaherero, 1876; Kirche u. Gottesdienst auf Omburo, 1877; Allerlei von allerlei Kindern in d. Heidenwelt, 1879; Report on a preaching trip to the north of Hereroland, 1879. North of Hereroland, 1880; Reports from Omburo by Mrs. Emilie Bernsmann, née Westkott, 1891; Letter from Cornelius Zwartbooi, 1891; Letter from Chief Juda Mungunda, 1893; Private letters, also from female family members, to Insp. Johannes Wilhelm Karl Spiecker, 1886-1902; essay: The Bergdamra Mission, 1892; reports on the Herero uprising, 1904; obituary for Mrs. Auguste Dannert, née Dahl, 1927;