Correspondence with the Missionary Brothers and Sisters and the Home Administration, 1914-1915; Correspondence with various local persons and imperial authorities because of the war events, 1914; War Reports by D. Delius, 30.10.1914-20.12.1914; Order for the field service in Moshi, Christmas 1914; collection of special sheets of the "Usambara Post on Austria's declaration of war in Serbia and the war situation in Germany and East Africa, August 1914; Official announcement of the district official Köstlin in Wilhelmstal, 1914; "The Battle of Tanga, report by S. Delius, November 1914

Annual, Monthly and Presidential Reports, Correspondence, 1892-1909; Conference Minutes, 1892-1908; Baptismal Form in Kishambaa and German, 1895; Principles for the Liturgy in Worship, 1902; Confidential Reports on a Journey through Segulaland and the Ngulu Mountains by E. Johanssen, 11 p., ms.., 1904; Statements of missionaries on circumcision, 1903-1904; newspaper clippings, 1905; Conference Decisions from Africa, 1908; "Journey to Usambara by Wohlrab 5 p., ms., 1909; "From our external schools by F. Gleiß, 12 p., 1909; "Victim to the Shambala 7 p., ms., n.y. ; "Poor lepers in East Africa 7 p., ms., n.y.

Correspondence and reports, 1910-1914; Advice for outgoing siblings, c. 1910; Minutes of the annual conference of Usambara in Mlalo as copy, 1912; Minutes of the meeting of community elders of Usambara in Tanga, February 1914; Statistics, 1914

Correspondence on school issues, health care, reconstruction of Lwandai, printing works in Wuga etc., 1925-1927; monthly accounts, 1926; budget estimates, 1927-1928; conference protocol Mlalo, January 1927; oldest meeting of January 1927; status report on mission work(s) in Usambara by E. Johanssen, 1925; reports on the Bethel mission in "Dresdner Anzeiger, October 1927

Statistical material on church, school and medical work in Bukoba, 1926-1938; statistical material on church, school and medical work in Digoland and Usambara, 1932-1939; statistical material on the work of the Bethel Mission, 1949-1970

Statistical records of mission, hospital and school work

Letters, reports, accounts, 1911-1914; land register entry for the property at Panganiweg in Tanga, January 1911; monthly reports from Wound near Gombero and a report about a consecration of a church in Wound (only as fragment!), 1911; Chronicle of Magodi (Nngweneni), 1911-1912; thank-you letters from Yakobo Ngombe u. Hermann Kanafunzi as translations, 1912; Map sketch of the area in the south of Tanga, 1913; "How we found a house for the girls' school in the native quarter of Tanga by S. Delius, April 1913; individual documents from the years 1917, 1922 and 1929, including a report by Wohlrab on Tanga (Usambara), 1929; "Ein Kampf um Tanga - Bericht über den Tod von Missionar Günther (Druck), 1915

Letters, reports, invoices, 1901-1910; So-called "Burensache, i. e. the employment of two Boers from Transvaal, father and son of Folker, who could not return to their homeland, 1902-1903; "Baptism of the first fruits of Gombero, December 1906; Plan of the Mission House in Gombero (Digo), 1907; Call to Organize a German Protestant Church in Tanga u. in the hinterland, printed flyer, 1909; A copy of the "Usambara-Post with an essay by Delius about "Die deutsche evangelische Kirchengemeinde von Tanga u. Hinterland vom September 1909

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.

Reise- u. Arbeitsberichte von E. Johanssen, 1925-1928; "Wieder auf dem alten Arbeitsfeld in Ostafrika, 1925; "Zur Erziehungskonferenz von Usambara nach Dar-es-Salaam 13 p., ms., 1925; "Meeting of indigenous priests in Mlalo, 1925; Reports and letters by Johanssen, Mörchen, Gleiss, Dr. Kröber, Hosbach, Scholten, Hagena and others, 1929; Report on Lutindi von Nickel, 1929; Reports by women on women's fates and women's work in Buhaya (see table of contents in the file), 1929

Copies of Purchase Agreements, 1902-1908; Inventory, 1925-1926; Correspondence on Mission Property, 1950 and 1957

Correspondence of Rorarius, Accounts, etc., 1937-1938; A Few Pen-pictures from the Work of the Bethel-Missionary Society; Mother's Love in the Heart of Africa, 4 p., print, 1938; "The Usambara Association (the Settler) - A Memorandum on the Objectives and Objects of this Association, June 1938

Correspondence from Rorarius, accounts, etc.; "Christmas Greetings from Bethel, 4 p., printed, December 1935; flyer "We have promised our help from Friedrich von Bodelschwingh with an essay "Das rufende Land (Usambara) von Rorarius, September 1935

Correspondence of the Langheinrich Manor, 1912-1913; Power of Attorney for Ruccius Manor, 1914

Correspondence from Rorarius, 1929-1934; Correspondence concerning the return of mission property, 1930; Draft of a Land Order of the Bethel Mission, 1931; So-called "Landsache, July 1934; Draft of an Order for the Usambara Church Treasury, 1934

Work and travel reports of the staff; report on the third Lutheran mission conference in Tanganyika-Territory, October

Work reports of the employees; report on the life and death of Hermann Kanafunzi von P. Gleiss

Reports, newsletters and stories of the employees

Reports, newsletters and narratives of the employees

Reports, newsletters and narratives of the co-workers

Reports, newsletters and stories from employees

Letters and diary reports from Becker & Döring

Land register extracts, purchase contracts, map sketches (originals, photocopies and blueprints)

Accounts of the printing house, the sawmill, the Lutindi companies, Duka Lwandai, the joinery, the publishing house, the savings bank and "Ufalme