A look at astronaut Laurel Clark, who was on board the space shuttle Columbia Associated Press Biographical information on Laurel Clark: Name _ Dr. Laurel Blair Salton Clark Age _ 41. Born March 10,1961 in Ames, Iowa; considers Racine, Wis., to be her hometown. Education _ Graduated from William Horlick High School, Racine, 1979; bachelor's degree in zoology, University of Wisconsin-Madison, 1983; doctor's degree in medicine, UW-Madison, 1987; holds Wisconsin medical license. Career _ Completed Navy undersea medical officer training at the Naval Undersea Medical Institute and diving medical officer training at the Naval Diving and Salvage Training Center; performed medical evacuations from submarines during assignment in Holy Loch Scotland; stationed at MCAS Yuma, Arizona and assigned as Flight Surgeon for a Marine Corps AV-8B Night Attack Harrier Squadron; flight surgeon for the Naval Flight Officer advanced training squadron (VT-86) in Pensacola, Fla.; selected by NASA in April 1996; qualified for flight assignment as a mission specialist after completing two years of training and evaluation. Personal _ Married to Jonathan B. Clark. They have one child. ____