The collection consists of copies of speeches, public statements, press releases, memoranda, letters, church records, personal journals, travel documents, family photographs, kinship charts, field notes, manuscripts and related materials on the Inkatha Freedom Party and descendants of the Boers who left South Africa following the Anglo-Boer War of 1899-1902. The collection also includes materials on the Afrikaner Broederbond and the Dutch Reformed Church. Du Toit has used these materials in several published works, including three books on the Afrikaner diaspora: Colonial Boer: an Afrikaner Settlement in Chubut, Argentina (1995); Boer Settlers in the Southwest (1995); and The Boers in East Africa (1998).