United States explorer who (with Meriwether Lewis) led an expedition from St. Louis to the mouth of the Columbia River; Clark was responsible for making maps of the area (1770-1838)
"Meriwether Lewis and William Clark led their famous expedition across the American West, with Clark skillfully mapping the terrain they encountered along the way."
United States general who was Allied commander in Africa and Italy in World War II and was commander of the United Nations forces in Korea (1896-1984)
"General Clark led the Allied forces across both North Africa and Europe during World War II before commanding troops in Korea."
United States psychologist (born in Panama) whose research persuaded the Supreme Court that segregated schools were discriminatory (1914-2005)
"The court case led by Clark ultimately established that separate educational facilities are inherently unequal."
Canadian politician who served as prime minister (1939-)
"The country mourned the passing of Clark, whose long tenure as prime minister reshaped Canada's political landscape since 1939."
An English and Scottish occupational surname, from occupations for a scribe, secretary, or cleric.
"The census record showed that Clark was an established family name in both England and Scotland derived from roles such as scribe or cleric."
The word clark comes from the Old English term clerc, which originally meant a clergyman or a learned person. It traveled into modern usage as a variant spelling of the more common word "clerk."