Arthur Theodore Carl Salkinson, known as A. Salkinson, assayer, chemist and metallurgist, was the son of Eugen Salkinson and Henriette Geyer. He was a member of the Chemical and Metallurgical Society of South Africa by January 1897 and remained a member when it was revived after the Anglo-Boer War (1899-1902) as the Chemical, Metallurgical and Mining Society of South Africa. During 1912-1914 he served on the society's council and as a member of its finance committee.
In 1905 Salkinson worked for Witwatersrand Deep, Ltd., in Knights, Johannesburg. He contributed a paper on "Utilisation of waste heat in slimes settlement" to the Journal of the Chemical, Metallurgical and Mining Society of South Africa (1906/7, Vol. 7, pp. 403-).
On 1 April 1899 in Johannesburg he married Emma Winifred Isabel Williams.