Gene Clark (Harold Eugene Clark, 1944–1991), American singer-songwriter
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Harold M. Clark (1890–1919), U.S. Army Signal Corps soldier and the namesake of Clark Air Base in the Philippines
Clark Gable | Harold Pinter | Harold Wilson | Clark | Petula Clark | Harold Macmillan | Lois & Clark: The New Adventures of Superman | Clark Kent | Clark County | Dick Clark | Clark County, Nevada | Roy Clark | Harold Bloom | Harold Godwinson | Guy Clark | Helen Clark | Harold Lloyd | Lewis & Clark College | Joe Clark | Wesley Clark | Jim Clark | Harold Stassen | Harold Prince | George Rogers Clark | Clark University | Clark Howard | Clark County, Washington | J. Harold Ellens | Harold Holt | Clark Ashton Smith |