About Arie Steyn
There are serious doubts about the question whether Arie Steyn is actually the father of Douwe Gerbrandt Steyn. Reasons:
1. There is no mention of this relationship in SAG 12 or in Die families van Ou Swellendam Deel 1 Steyn, or on the First Fifty years project http://www.e-family.co.za/ffy/g7/p7766.htm or on the outdated Steyn family website http://www.steyn.pro/genealogy/steyn/douwe/index.htm
2. Douwe Gerbrandt Steyn as he became known in South Africa, was known as Douwe Gerbens in Friesland where he originated from. In Friesland at the time, they did not use surnames, but patronymics. That means: a. His father's first name is Gerben, not Arie. b. His father would not have had the 'surname' Steyn, but his 'surname' would be derived from the first name of his father, the grandfather of Douwe Gerbens.