J.J.R. Smythe: Correspondence and papers re engineering in South Africa 1889-1929, GBR/0012/MS Add.9504. Cambridge University Library.

J.J.R. Smythe: Correspondence and papers re engineering in South Africa 1889-1929, GBR/0012/MS Add.9504. Cambridge University Library. https://archivesearch.lib.cam.ac.uk/repositories/2/resources/8744 Accessed March 24, 2023.