Keys1930–1930Nomi e CognomiJohanna Cathrina KeysCronologiaBirth1930Death1930RelazioniFratelli/SorelleKeys (1920–1980)Keys (1920–1970)GenitoriJoseph Alexander Buller Keys (1901–1957)Magdalena Johanna van Zyl (1905–1968)Fontiwikitree Keys-2555