|1.||Helen. born 1950, New Zealand politician; Labour prime minister (1999--2008)|
|2.||James, known as Jim. 1936--68, Scottish racing driver; World Champion (1963, 1965)|
|3.||Kenneth, Baron Clark of Saltwood. 1903--83, English art historian: his books include Civilization (1969), which he first presented as a television series|
|4.||William. 1770--1838, US explorer and frontiersman: best known for his expedition to the Pacific Northwest (1804--06) with Meriwether Lewis|
john bates clark
American economist noted for his theory of marginal productivity, in which he sought to account for the distribution of income from the national output among the owners of the factors of production (labour and capital, including land)
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