Includes: correspondence belonging to Mr and Mrs JJC Leyds, parents of GA Leyds, for the years 1887-1939.; letters and documents (mostly 1940-1949) concerning the estate of Dr WJ Leyds, former State Secretary of the Zuid-Afrikaansche Republiek, and uncle of GA Leyds; miscellaneous pamphlets, notes, press cuttings, etc.; 23 scrap-books, many with cuttings about World War I and II; odd bound local newspaper volumes; many illus. etchings by Gwelo Goodman of "Old Parliament Street"; photographs of S.A., and some of the Leyds family; maps; correspondence and press cuttings about the Leyds family, and letters to GA Leyds.