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Powell, John

(Encyclopedia)Powell, John, 1882–1963, American pianist and composer, b. Richmond, Va., grad. Univ. of Virginian, 1901. In Vienna he studied piano and composition and in 1908 made his debut as a pianist in Berlin...

Powell, William

(Encyclopedia)Powell, William, 1892–1984, American movie actor, b. Pittsburgh. Powell made his stage debut in 1912. He played the dapper villain in such early films as Sherlock Holmes (1921), Romola (1924), and B...

Powell, Lake

(Encyclopedia)Powell, Lake: see Glen Canyon Dam. ...

Clayton, John Middleton

(Encyclopedia)Clayton, John Middleton, 1796–1856, American statesman, b. Sussex co., Del. Admitted (1819) to the bar, he practiced at Dover, Del., held many state offices, and was twice (1828, 1845) elected to th...

Clayton Antitrust Act

(Encyclopedia)Clayton Antitrust Act, 1914, passed by the U.S. Congress as an amendment to clarify and supplement the Sherman Antitrust Act of 1890. It was drafted by Henry De Lamar Clayton. The act prohibited exclu...

Clayton-Bulwer Treaty

(Encyclopedia)Clayton-Bulwer Treaty, concluded (Apr. 19, 1850) at Washington, D.C., between the United States, represented by Secretary of State John M. Clayton, and Great Britain, represented by the British plenip...

Killebrew, Harmon Clayton

(Encyclopedia)Killebrew, Harmon Clayton, 1936–2011, American baseball player, b. Payette, Idaho. A soft-spoken slugger nicknamed “Killer,” he played in the American League, beginning (1954) with the Washingto...

Urey, Harold Clayton

(Encyclopedia)Urey, Harold Clayton yo͝orˈē [key], 1893–1981, American chemist, b. Walkerton, Ind., grad. Univ. of Montana (B.S., 1917), Ph.D. Univ. of California, 1923. He taught at Johns Hopkins (1924–29), ...

Dies, Martin, Jr.

(Encyclopedia)Dies, Martin, Jr. dīz [key], 1901–72, American political leader, b. Colorado, Tex. A lawyer, he represented Texas as a Democratic member of the U.S. House of Representatives (1931–45; 1951–59)....

Davis, Raymond, Jr.

(Encyclopedia)Davis, Raymond, Jr., 1914–2006, American astrochemist, Ph.D. Yale Univ. 1942. Davis, who served in the Army Air Forces from 1942 to 1946, was a researcher at Monsanto Chemical Company (1946–48) an...