Alvan Clark, a nineteenth-century astronomer and telescope-maker
Clark Gable | Clark | Petula Clark | Lois & Clark: The New Adventures of Superman | Alvin and the Chipmunks | Clark Kent | Clark County | Dick Clark | Clark County, Nevada | Roy Clark | Guy Clark | Helen Clark | Alvin Ailey American Dance Theater | Lewis & Clark College | Joe Clark | Wesley Clark | Jim Clark | Alvin Lucier | George Rogers Clark | Clark University | Clark Howard | Clark County, Washington | Clark Ashton Smith | Alan Clark | Lewis and Clark Expedition | Kimberly-Clark | Fort Clark, Texas | Alvin Toffler | Alvin Stardust | Dave Alvin |