- FondsA2562 - Mark Heywood Papers
- SeriesB - Marxist Workers Tendency (MWT) of the ANC
- SubseriesB9 - Political Prisoners Campaign
- PartB9-2 - Internal correspondence and reports re campaign
- PartB9-3 - Leeuwkop Hunger Strike Solidarity letters
- PartB9-4 - Letters from Leeuwkop Prisoners
- PartB9-6 - Demetrio Skoularikis and Frederich Brenner