1870-1872 teacher at the Seminar d. RMG, 1873-1880 in Otjimbingue, 1880-1887 pastor in Königsberg, 1887-1889 inspector of the East Africa Mission and lecturer at the Oriental Seminar Berlin III; Letters and Reports, 1872-1880; Protocoll about the abolition of the forging of the Mission Colony Otjimbingue, 1874; Regen im Damralande, 7 p., hs., 1875; Löwengeschichten, 10 p. hs..., 1875; Sociale Verhältnisse im Hereroland, 36 p., hs., 1876; Die Bergdamra, 16 p., 1877; Wege im Damaraland, 16 p., 1877; 2 letters of J. Chr. Goliath from d. Augustineum, 1877; The Augustineum in Otjimbingue, 5 p.., hs., 1877; school visit in Hererolande, 20 p., hs., 1879; church consecration in Scheppmannsdorf, 10 p., 1879; September 1990 preserved: Personal Diarium of Büttner from the years 1867-1871; biographical material on Büttner (copies) by Prof. Ernst Hans Dammann;[Büttner's letters contain interesting information on the Mission Trade Society and on political conditions in Southwest Africa, see also Bethel Mission];
Rhenish Missionary SocietyCorrespondence; Minutes; Annual Reports; Statute, 1897; Revised Statute, 1910; Döring: The child murders in East Africa, 1910
Rhenish Missionary Society(1824 Leipziger Missionsverein); Correspondence for mutual information and coordination of work; Accompanying letters to gifts and Miss. writings, 1822-1844; appeal to all friends luth. confession to found an ev. luth. mission society in Dresden, Dr., 1836; Statut der Dschagga-Mission, 1904; Gemeindeordnung f. d. Ev.Lutheran Church in German East Africa, 1906; Gottesdienstordnung f. d. Dschagga-Mission, 1906; Neue Nachrichten aus der Heidenmission, Nr. 98, 1908; Address list of the recipients of this sheet, 1908; Lieder für Missionsfeste, Leipzig o.J.; In Kriegsnot, call for donations, ca. 1915; conditions for admission to the Seminar Leipzig, o.J.; Programm d. Hundertjahrfeier, Dr., 1936; 50 Jahre Leipziger Arbeit in Ostafrika, 16 S., Dr., 1943
Rhenish Missionary SocietyCorrespondence; Statutes Duisburger Missionshilfsges., Dr.; Reply letter of the priest asked for membership in the extended advisory board of the Deputation, 1865; Correspondence with the Hilfsges., 1870-1895; Circular letter to the chairmen of the Hilfsges. and answers thereto, 1886-1895; The German people's Christian duty, Call for missionization in German colonial areas, Dr.; Invitations to annual festivals of the Lüdenscheider Hilfsverein, Dr, 1887, 1895; Invitations to the annual festivals of the Märkische Hilfsverein, Dr., 1886 1887; leaflets "Die Rheinische Mission am Ende des Jahres...", Dr., 1887-1890; same at the beginning of the year...", Dr., 1892-1895; Die Position der Rhein. Mission to the East African. Mission, Dr., 1891; pamphlets of the Märkischer Hilfsverein, Dr., 1891 1894; pamphlet of the Lenneper Hilfsverein "Wie stehts mit unserer Missionsarbeit", Dr., 1892; annual reports of the Märkische Missions-Hilfsverein, Dr., 1887-1894 1898
Rhenish Missionary Society