Helen Suzman is a South African anti-apartheid activist and politician. She was elected to Parliament as a member of the United Party. She switched to the liberal Progressive Party in 1959, and represented the wealthy Houghton constituency as that party’s sole Member of Parliament from 1961 to 1974.
Suzman was noted for her strong public criticism of the governing National Party’s policies of apartheid. As parliamentary white opposition to apartheid grew, the Progressive Party was renamed the Progressive Federal Party, and she was joined in parliament by notable liberal colleagues such as Colin Eglin. She spent a total of 36 years in parliament. She was voted #24 on the Top 100 Great South Africans.
Source - Wikipedia
http://en.wikipedia.org/wiki/Helen_Suzman