1816-1903); 1845-1861 in Otjikango, Otjimbingue, Bethanien, Sarepta, Stellenbosch, 1862-1893 at the Cap; letters and diaries, 1843-1903; also letters and travel diary of Anna Rath, née Jörris, 1846-1847;

1853-1878 in Bethany; Military clearance certificate and other military service papers, 1847-1851; Letters from the time of military service, 1851; Letters and diaries from Africa, 1852-1878; Letter from the widow Magdalene Kreft, née Hatje, 1879;

1841-1854 in Kommaggas, Bethanien, Tulbagh, 1852-1854 in Capeland, from 1854 back in Norway, s.a. RMG 2.598, parts of the file heavily damaged; curriculum vitae, 1841; letters and diaries of Knudsen 1841 1844-1854; letter from Daniel Cloete, Bethanien, 1854;

1852-1853 in Bethanien, Otjikango; letters and diaries from missionary holidays, 1848-1850; letters and diaries from Africa, also from Emmy Haupt (1854 married to Georg Zimmer), Gorth's bride, d. did not find him alive anymore, 1851-1853; transcript from "Hessische Biographien": "Gorth, Matthäus, Missionar, 1823-1853", edited by Hermann Haupt, Darmstadt, 1918; photocopy of the obituary for Matthäus Gorth in the reports of the RMG;

Catechist and colonist, 1834-1848 in the Cape, 1848-1852 in Ebenezer, Bethanien, Berseba, 1852-1875 in Germany, then back to Africa, see also RMG 2.372; Letters and diaries by Samuel Johann Hahn and Mrs. Helene Hahn, née Langenbeck, 1831-1855; C. Böhm to Mrs. Helene Hahn, 1870; Fr. Heinrich Hahn, Dautzschen to Deputation, 1884;