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Andrew A. Dantzler

Andrew A. "Andy" Dantzler, an optical engineer who was program area manager for civilian space at the Johns Hopkins Applied Physics Laboratory in Laurel, died Thursday of cardiac arrest at Johns Hopkins Hospital. The longtime Sykesville resident was 49. The son of a federal government worker and a counselor, Andrew A. Dantzler was born in Bethesda and raised in Rockville, where he graduated in 1980 from Robert E. Peary High School. After earning a bachelor's degree in astronomy and physics in 1984 from the University of Maryland, College Park, he went to work as an optical engineer at Goddard Space Flight Center in Greenbelt. From 1984 to 2006, Mr. Dantzler was manager...