Her Wikipedia article is here. Her article includes the following, "After resettling in Johannesburg, she started acquiring paintings with a view to eventually founding an art gallery, which after many difficulties took shape as the Johannesburg Art Gallery. She played a leading role in projects aimed at cultivating and preserving the local artistic heritage. She persuaded Sir Max Michaelis to donate his considerable collection of 17th century Dutch and Flemish paintings to the city of Cape Town. She headed a movement to preserve and restore the Koopmans-De Wet House in Cape Town and was an enthusiastic collector of Africana furniture, both for her own home and public institutions. She was instrumental, with Prof. G.E. Pearse, in establishing a Faculty of Architecture at the University of the Witwatersrand."