Chris J. Watermeyer, a Karoo farmer, made regular observations of rainfall and river flow on his farm Colonies Plaats (later Koloniesplaas), some 40 km north-east of Graaff-Reinet, from 1883 to 1902. His observations were reviewed by the meteorologist C.M. Stewart* in "Rainfall and river notes from a Karroo farmer's diary, Colonies Plaats, 1883-1902" in the South African Irrigation Department Magazine (Vol. 1(1), pp. 15-18) in 1921. The paper included a table of rainfall and thunderstorm observations. Watermeyer was married, had at least one son, and died in or before 1932.