List of sources:
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Cape of Good Hope. Report of the Surveyor-General, 1880.
Cape Town directory..., 1865, pp. 89-90, Sworn land surveyors.
Death notice: Stegmann, George Frederick. Cape Times, 4 November 1882. Retrieved on 26 November 2020 from https://www.eggsa.org/newspapers/index.php/cape-times/1182-cape-times-1882-4-october-december
Heese, J.A. South African genealogies. Pretoria and Stellenbosch, 1986-2005.
Liebenberg, E.C. Die topografiese kartering van Suid-Africa, 1879-1972; 'n histories-geografiese ontleding (pp. 137-138). MA-verhandeling in Geografie, Universiteit van Suid-Afrika, 1973.
National Automated Archival Information Retrieval System (NAAIRS). http://national.archives.gov.za/naairs.htm Documents relating to Stegman, George F. / Stegman, G.F.
Ritchie, W. The history of the South African College, 1829-1918. Cape Town: T. Maskew-Miller, 1918.
Van Rensburg, J.F.J. George Frederick Stegmann, eerste Landmeter-Generaal van die Oranje-Vrystaat. South African Journal of Surveying and Mapping, 1991, Vol. 21(1), pp. 9-13.