Victor Hartog passed the matriculation examination of the University of the Cape of Good Hope in 1896. The next year he enrolled at the South African College, Cape Town, and passed the mining examination of the University of the Cape of Good Hope in 1899. He continued with his practical training at De Beers Consolidated Mines, Ltd, Kimberley, and in 1901 was awarded the university's Diploma in Mining Engineering. Continuing his studies under difficult conditions during the Anglo-Boer War (1899-1902) he obtained the degree BSc (Mining Engineering) in 1903. After a further year or so with De Beers he proceeded to Columbia University in the United States around 1905, where he obtained a masters degree in engineering (EM) and a Master of Arts (AM) degree in geology. While there he wrote a "Petrographic note on the diamond-bearing peridotite of Kimberley, South Africa" which was published, with a bibliography of the South African diamond fields by A.A. Julian, in Economic Geology, 1909, Vol. 4(5), pp. 438-469).
Upon returning to South Africa in about 1908 Hartog was employed at the Langlaagte Deep mine in Johannesburg. In 1914 he was appointed assistant inspector of mines in the Department of Mines and Industries. He became a member of the Geological Society of South Africa in 1909.
Hartog emigrated to New Zealand in 1915. He died at a young age of influenza and pneumonia, during the influenza epidemic of 1918-1919. In New Zealand he married Gladys Constance Kooy, with whom he had a daughter.