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;

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;