Preparations for this; letters from Carl Hugo Hahn, D. Postma, Peter Heinrich Brincker and many others. 1890-1897; detailed reports by Friedrich Heinrich Peter Bernsmann von e. Erkundungsreise von Omaruru nach Olukonda u. Ondjiva, with map sketch 1891-1892; Protokoll e. Meeting with the Finnish missionaries Hannula u. Pettinen July 1891;

Documents:20 picture-postcards (1901/1902)picture of Heinrich Prüß in uniform (1901)letter to his brother (1901)estate documents (1904-1911)12 photocopies of the estate documents (1904-1911)manuscript draft due to estate regulation (1905)literature:essay in the yearbook "Geschichte und Gegenwart" of the Verein für Kloster- und Heimatgeschichte Harsefeld e.V.. (Society for Monastery and Local History Harsefeld), Vol. 17 (2004) by Paul Reisener: Heinrich Prüß from Harsefeld fought and died in German-Southwest-Africa

and others: Lazaret in Windhoek; Warrior Association Windhoek; Native Church in Windhoek; Natives (Herero; Nama; Owambo); German Schutztruppe; Fortress Omaruru; Church in Bethany; Oitjo; Artillery of the German Schutztruppe; Kunene river; Owambo mission station; native animal species; Gobabis fortress; Oas fortress; Auasberg heliographer station; Keetmanshoop fortress; (28 x 21 cm) various sizes; album with photographs, black and white; z. T. strongly faded

Missions-Farmer, 1914-1919 in Omaruru; Application and Testimonies, 1913; Instruction, 1913; Missionary Adolf Blecher and Karl (Carl) Friedrich Wandres about Adolf Ludwig Schick, 1913; Correspondence, 1913-1921; Correspondence about the heroic death of his son Gottfried, 1950;