); colonist, 1856-1865 in Scheppmannsdorf, Walvis Bay, Gobabis, since 1865 trader in Steinkopf in the Cape country; letters and reports;

Missions-Bauhandwerker, 1907-1910 in Outjo, Gobabis; Instruction, 1907; Letters and Reports, 1907-1910; Medical Certificates, 1910; Testimony about his work in the mission, 1912;