Caldwell, K. 1952. Controlling big game. Field, the country gentleman's newspaper 198 (5116), 1952 December 20: 1081-1082.
Caldwell, K. 1951. A new game law for Kenya. Field, the country gentleman's newspaper 198 (5141), 1951 July 21: 103.
Caldwell, K. 1948. Report of a faunal survey in Eastern and Central Africa, January to April, 1947. Cambridge, Society for the Preservation of the Fauna of the Empire (Occasional Paper no. 8). pp. 1-38.
Caldwell, K. 1938. Game wardens of Kenya. Journal of the Society for the Preservation of the Fauna of the Empire 35: 22-25.
Caldwell, K. 1932. Chasse de l’Elephant et du Rhinoceros dans l’Ouganda. 2nd Congres Internationale pour la Protection de la Nature Proceedings 30 Jun - 4 Jul 1931 Paris: 103-104.
Caldwell, K. 1926. Extract of a lecture. Journal of Mammalogy 7: 347.






