List of sources:
Curson, H.H. The veterinary profession in South Africa. Journal of the South African Veterinary Medical Association, 1931, Vol. 2, pp. 3-22; 1932, Vol. 3, pp. 133-137.
Dale, T.H. Heredity. Agricultural Journal of the Union of South Africa, 1911, Vol. 1, pp. 44-54.
Dale, T.H. Home remedies for livestock. Agricultural Journal of the Union of South Africa, 1912, Vol. 3, pp. 479-485.
Google scholar. http://scholar.google.co.za Publications by T.H. Dale.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to T.H. Dale.
Posthumus, P.J. Past Veterinarians in South Africa (10th edition), Vol. 2, c.1992.
Transvaal [Colony], Department of Agriculture. The Veterinary Bacteriological Laboratories (Preface). Pretoria: Government Printer, 1909.
Transvaal Agricultural Journal, 1904, Vol. 2 and 1906/7, Vol. 9: Articles by Dale.
Union of South Africa. Public service list, 1914.