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Ricardo, David

(Encyclopedia) Ricardo, David, 1772–1823, British economist, of Dutch-Jewish parentage. At the age of 20 he entered business as a stockbroker and was so skillful in the management of his affairs that…

Rittenhouse, David

(Encyclopedia) Rittenhouse, David, 1732–96, American astronomer and instrument maker, b. near Germantown, Pa., self-educated. A clockmaker by trade, he developed great skill in the making of…

Baltimore, David

(Encyclopedia) Baltimore, DavidBaltimore, Davidbôlˈtĭmôr [key], 1938–, American microbiologist, b. New York City, Ph.D. Rockefeller Univ., 1964. He conducted (1965–68) virology research at the Salk…

Salle, David

(Encyclopedia) Salle, David, 1952–, American painter, b. Norman, Okla. One of the artists whose reputation reached its peak during the 1980s, he studied at the California Institute of the Arts (1970–…

Smith, David

(Encyclopedia) Smith, David, 1906–65, American sculptor, b. Decatur, Ind. He arrived in New York City in 1926 and studied painting at the Art Students League. In the 1930s he began experimenting with…

Sarnoff, David

(Encyclopedia) Sarnoff, David, 1891–1971, American pioneer in radio and television, b. Russia. Emigrating to the United States in 1900, he worked for the Marconi Wireless Company, winning recognition…

Porter, David

(Encyclopedia) Porter, David, 1780–1843, American naval officer, b. Boston. Appointed a midshipman in 1798, he served in the West Indies and in the war with Tripoli. In 1803 his ship, the…

Packard, David

(Encyclopedia) Packard, David, 1912–96, American business executive, b. Pueblo, Colo., grad. Stanford (B.A., 1934; M.S., 1939). He and classmate William R. Hewlett opened a garage-based business,…

Pearson, David

(Encyclopedia) Pearson, David, 1934–, American auto racing driver, b. Spartanburg, S.C. In a 27-year National Association for Stock Car Auto Racing career (1960–86), the “Silver Fox” won a total of…

Cox, David

(Encyclopedia) Cox, David, 1783–1859, English landscape painter, a follower of John Constable. He is best known for his watercolors of Welsh scenery, of which he produced a great number. Cox is well…