Amraal's tribe, abandoned from 1880-1907, Farm Gobabis s. RMG 2.547; annual and conference reports, by missionary Jakob Friedrich Johann Irle and others, 1908-1935; Chronology of Gobabis 1855-1910, pag. 1, ca. 1910; Reports of mission colonist Oskar Emil August Gerlach, 1908-1909; visitation report, picture postcard, 1911; report to OKR in Berlin about work on d. Gobabis district, 1911; Gobabis, report, Jakob Friedrich Johann Irle about his 25 years there, 1931; About Amral Lambert's life, the mission station Wesley Vale and Gobabis and the Mbanderu until about 1896, Jakob Friedrich Johann Irle, 10 p. ms, o. J.

Contains among other things: Sale of the farm Bruhnkasten in the district Grootfonthein by Hans Heinrich Bruhn to Prof. Dr. Penning, Berlin.