- FondsA1138 - James Charles Napoleon Humphreys, Mining papers
- SeriesI - Far West Rand
- File336 - Potchefstroom
- File337 - Middle Witwatersrand (Western Area) Ltd. Potchefstroom
- File338 - New Central Wit, Areas Ltd., African & European
- File339 - Main Beef Outcrops South, Ltd. Witkop 51 - Potchefstroom
- File340 - Western Rand, Estates
- 14 more...