- FondsA2618 - Robert Sobukwe Papers
- SeriesB - Correspondence - with Robert Sobukwe and concerning him
- SubseriesBa - Correspondence between B Pogrund and Robert Sobukwe, and general
- sub-subseriesBa4 - Untitled
- sub-subsubseriesBa4.19 - Correspondence with Dr Marvin Wachman about books for RM Sobukwe
- FileBa4.19.1 - Benjamin Pogrund: Letter to Dr Marvin Wachman, Lincoln University
- FileBa4.19.2 - Dr Marvin Wachman: Letter to B Pogrund from Lincoln University