Did Elon's daddy actually contribute to RSA thoroughbreds ???

.....caught a recent online interview with Errol Musk.....where he claims to have had a "horse" farm near Sandton circa early 80's where he bred "race" horses....the area he describes where he owned this so called horse farm seems to have been located North of Witkoppen Rd between Fourways and  Lonehill....is this claim legit or like many of the other seemly over embellished claims similar to that of the Zambian emerald mine story and other rather dubious claims he has made in other press reports....