Abrahamse family

I keep getting references to the Griqua tribe when I research the Abrahamse side of my family. I have come to a brick wall with @Johannes Jacobus Abrahamse married to Eva Van de Caap. Through DNA testing I have a connection with Louisa Ludovica Israel the grandmother of the wife of Cornelis Jacobus Kok. Her mother is Johanna Elizabeth Reinhardt and I have a Louisa Reinhardt in my tree wife of @Cornelis Jacobus Abrahamse. I would like to know if @Cornelis Jacobus Abrahamse is also a bloodline descendant of the Griqua tribe and also the connection between Johanna Elizabeth Reinhardt and Louisa Reinhardt. Can anyone access any records or does anyone have any information that might give me a clue?