List of sources:
Agricultural Journal of the Cape of Good Hope, 1890-1892, Vol. 2-5.
Cape Monthly Magazine, Series 2, December 1871, pp. 382-384; and June 1872, Vol. 4, pp. 382-384: Albany Natural History Society.
Cape of Good Hope. Civil service list, 1896-1898.
Cape of Good Hope. Report of the Commission appointed to inquire into and report upon diseases of cattle and sheep in this Colony. Parliamentary Report G3-1877.
Cape of Good Hope. Report of the committee of the Albany Museum, 1872, 1873, 1875.
FamilySearch: James Bisdee Hellier. https://www.familysearch.org/ark:/61903/1:1:NXRW-QDQ AND https://www.familysearch.org/ark:/61903/1:1:QLX3-8Y79
Gibbens, M. Two decades in the life of a city: Grahamstown 1862-1882. MA dissertation, Rhodes University, 1982.
Grahamstown Journal, 20 September 1867, p. 2: E.P. Silk and Cotton Growing Association; 20 March 1868, p. 4; 8 August 1870, p. 3; 19 February 1875, p. 3; and 15 November 1875, p. 3: Albany Natural History Society; 17 April 1872, p. 2: Eastern Province Cotton Association; 13 December 1875, p. 2: Testimonial to Mr J.B. Hellier; 8 July 1893, p. 3: Presentation to Mr Hellier.
Grocott's Penny Mail, 5 September 1889, p. 2: Our diary - Mr J.B. Hellier.
Gutsche, T. There was a man. The life and times of Sir Arnold Theiler, K.C.M.G., of Onderstepoort. Cape Town: Timmins, 1979.
Lounsbury, C.P. The pioneer period of economic entomology in South Africa. Journal of the Entomological Society of South Africa, 1940, Vol. 3, pp. 9-29.
Mendelssohn, S. South African bibliography. London: 1910.
National Automated Archival Information Retrieval System (NAAIRS). http://www.national.archives.gov.za/naairs.htm Documents relating to Hellier, James Bisdee / Hellier, J.B.