- FondsA2618 - Robert Sobukwe Papers
- SeriesB - Correspondence - with Robert Sobukwe and concerning him
- SubseriesBa - Correspondence between B Pogrund and Robert Sobukwe, and general
- sub-subseriesBa11 - Untitled
- sub-subsubseriesBa11.2 - Untitled
- FileBa11.2.1 - Benjamin Pogrund: Letter to Robert Sobukwe
- FileBa11.2.2 - Benjamin Pogrund: Letter to Robert Sobukwe