Engineer, 1898-1900 in Otjimbingue, later professor in Poznan/West Prussia; correspondence, expert opinions, reports on the improvement of water supply and farm management, 1898-1900; instruction for Walter Borchardt, 1898; Friedrich Wilhelm Gottlieb Viehe on Walter Borchardt's plans for a new water supply system, 1898-1900. d. Bewirtschaftung von Gaub, 1900; Plan sketch of Otjimbingue, 1:100,000 (damaged), 1899; Map sketch of Gaub, 1899; Profil e. Test drilling for e. cattle drinkers in Otjozonjupa, 1899; Letter of the daughter with death announcement, 1938;
Rheinische MissionsgesellschaftFarmer, missionary farmer, 1901-1939 in Gaub; letters and reports, accounts, inventory lists, 1901-1938; curriculum vitae, certificates and recommendations, 1899; instructions for Wilhelm Friedrich Detering, 1901 and 1922; curriculum vitae of Auguste Detering, nee. Stocksiek (copy), 1903; Letters by Karl Detering (son) with detailed description of the farm Gaub, March and November 1938; obituary for Wilhelm Friedrich Detering, 1945; correspondence with Mrs Auguste Detering, née Stocksiek, 1945-1962; death certificate of Mrs Auguste Detering, née Stocksiek, 1963;
Rheinische MissionsgesellschaftStation Gaub s. RMG 2,529 a, assistant seminar Gaub s. RMG 2,647, precipitation Gaub s. RMG 2,545 b, sales negotiations s. RMG 2,574; annual report, by Friedrich Kremer, 1902; map sketch d. Farm Gaub by Wilhelm Friedrich Detering, M. 1: 2000, 1903; farm reports, by Wilhelm Friedrich Detering, 1902-1937; visitation report, by Johannes Wilhelm Karl Spiecker, 1906; Inventarium d. Farm, recorded, 1909; various reports, by Heinrich Johann Brockmann, Heinrich Stritter, Präses Johannes Georg Heinrich Heinrich Olpp u. Heinrich Vedder, 1905-1912; Reports, by Hermann Eickmeyer and Ludwig Christian Cosmus on Gaub and Korab, 1918-1921; reports on the Ganachaam farm, by Gerhard Wilhelm Martin Kleinschmidt and Hermann Eickmeyer, 1920-1937; description of the Anawood, Korab, Gaub, Ganachaams and Omburo mission farms, not mentioned
Rheinische Missionsgesellschaft1844-1847 in Capeland, 1848-1852 in Worchester, Otjikango, Okahandja, Otjimbingue, leaving, from 1852 preacher at the Cap, Paarl; sacred poems and songs, composed and recorded by Friedrich Wilhelm Kolbe in his youth, octavheft, not published.Diary for Mr. Eickhoff, Gütersloh, with 7 drawings and explanations, 1847-1848; letters and diaries from various locations, including "Bericht über d. Überfall Jonker Afrikaners auf d. Missions-Station Schmelens Erwartung", 23.08.1850; rehearsal of the Rhine. Missionspresse, 1849; Report on the death of his wife Isabella Kolbe, née Elliott, 1893;
Rheinische Missionsgesellschaft1895-1900 in Rietfontein, Warmbad, Pfarramt USA et al. in St. John's Luth Church, Campbell Hill, Ill.; letters and reports, 1895-1900; curriculum vitae, ca. 1890; private letters to inspectors of the RMG, 1895-1900; What can we learn from the Good Samaritan for our mission, paper, 1899; letter about his departure from Mission, 1900; letters from Campbell Hill, Illinois/USA, 1921-1922;
Rheinische Missionsgesellschaft