clark(n = noun.person) william clark - 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);
clark(n = noun.person) mark clark, mark wayne clark - 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);