Curriculum Vitae, Instruction, Vow of Deputation, 1933; Tropenzeugnisse für Eheleute Grüninger, 1933; Korrespondenz, Berichte u. Versorgungsangelegenheiten, 1933-1967; "Fackelzüge in Afrika, 1934; "Bugabo, 1934; "Eine Reise nach Mubali, 1939; Ärztliche Zeugnisse für Familie Grüninger: 1939, 1951, 1956 u. 1961; Curriculum Vitae of Wilhelm Grüninger, 1963; Letters from Ursula Grüninger to Curt Ronicke, 1951-1954; "From Lutindi's Everyday Life, 1952; Miscellaneous from the Missionary Work in Kiberashi, 1954; "Bell Dedication in Tamota, 1954; "In Old Traces in Hayalande, about 1955; "Short Overview of the Work in Lutindi, 1959; "Kago, 1960