Inspector 1919-1931; certificate of appointment, 1918; evangelisation report, 1919; work report, 1923; Richtlinien für Abhaltung e. Gemeindevangelisation, Dr., ca. 1920; Beurlaubung u. Übernahme als Evangelist durch Provinzial-Ausschuss f. Evangelisation, 1920; Verhandlungen über Freig, 1923; Korrespondenz, 1921-1930; Todesanzeige u. Obruf, 1931; Korrespondenz mit Familie, 1932-1950; Todesanzeige für Elisabeth, geb. Schuch, 1950

Correspondence, travelogues, letters of friends, 1927-1935; vows of deputation, instructions, 1929; letters by Nehemia Kivulenge and Tadeo Kwalasi, 1930; Ein Blick in die Nöte u. Joy of our teachers, 1931; How our indigenous evangelists proclaim to their pagan compatriots, 1931; Violin sounds in Usambara, 1931; Pastoral questions from young Christianity on the Bethel Mission Field, 1932; Usambara Church Synod in Mtae, September 1934; map sketch of the coastal areas with marked parishes and planting communities, 1937; "Faith and Homeland, first year, publisher Dr. Wohlrab, number 1-3, January-July 1937; The Synod of the Church on the Coast of Usambara, July 1937; A Trombone Crusade, 1938; Pastoral Journey to the German Communities in the Kenya Colony on the Coast of East Africa, April to May 1939; Africa Letters from Dr. K. Wohlrab, 1936-1939; Medical Testimonies of the Wohlrab Family, 1940; The Interrelationship between Christian Family and the Church, 1940. Church on the one hand, and tribal world on the other hand, 1941; Gedanken zur Kriegsweihnacht, by Dr. K. Wohlrab in the East, 1942; letter of condolence on the occasion of the soldier's death of K. Wohlrab and memorial speech by Pastor Ronicke, 1943; correspondence with Hanna Wohlrab, née Hennig, 1943-1969