Korrespondenz, 1927-1938; Dienstanweisung u. Abgabgegewöde, 1929; Hochzeitsbilder, 1932; Familienfotos, 1936 & 1938; Korrespondenz, 1948-1967; Description of Franz and Käthe Mummert's work on their farm in Africa (stay there 1930-1938), 1953

Correspondence, also with Clara Weiss, 1912-1967; instructions and service contract, 1913; "One day on the way from Bukoba to Rwanda, 1913; paper on a mission trading branch in Rwanda, c. 1914; "About the beginnings in Shangugu, 1914; annual account of the farm Kawalinda, owner Boos, 1959; death announcement for Matthias Weiss, 1967