Pieterse Family Tree

Hi Everybody

I'm new to Geni and i'm looking to start researching the Pieterse family tree. If anybody know of someone on Geni or out in the "real world" that is doing similar research, please let me know. My great grandfather was Gerhardus Cornelius Uys Pieterse (1900-1968) and my grandfather Gerhardus Phillipus Johannes (van der Linde) Pieterse a.k.a Gert "Swazi" Pieterse. Please let me know if anyone has info on these family members.

Much appreciated

Eghardt Pieterse