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Hyde Park, town, United States

(Encyclopedia)Hyde Park, town (2020 pop. 21,021), Dutchess co., SE N.Y., on the Hudson River; settled c.1740. It is famous as the site of the Roosevelt estate, where ...

Sierra Nevada, mountain range, United States

(Encyclopedia)Sierra Nevada sēĕrˈə nəväˈdə [key], mountain range, c.400 mi (640 km) long and from c.40 to 80 mi (60–130 km) wide, mostly in E Calif. It rises to 14,495 ft (4,418 m) in Mt. Whitney, the hig...

Dykstra, Clarence Addison

(Encyclopedia)Dykstra, Clarence Addison dīkˈstrə [key], 1883–1950, American educator and civic administrator, b. Cleveland, grad. Univ. of Iowa, 1903. After graduate work at the Univ. of Chicago, he taught in ...

Republican

(Encyclopedia)Republican, river, c.420 mi (680 km) long, formed in S Nebr. by the junction of the North Fork and Arikaree rivers. It is joined by the South Fork at Benkelman and flows E across the rolling grassland...

Duncan, Robert Kennedy

(Encyclopedia)Duncan, Robert Kennedy, 1868–1914, American industrial chemist and educator b. Brantford, Ont., grad. Univ. of Toronto (B.A., 1892). He was professor at the Univ. of Kansas (1906–10) and at the Un...

Smoky Hill River

(Encyclopedia)Smoky Hill River, c.560 mi (900 km) long, rising on the Great Plains, E Colo., and flowing E across Kansas to join the Republican River and form the Kansas River at Junction City. The Saline River is ...

Rochester, cities, United States

(Encyclopedia)Rochester rŏchˈĕstər, –ĭstər [key]. 1 City (1990 pop. 70,745), seat of Olmsted co., SE Minn.; inc. 1858. It is a farm trade center, and its industries include printing and publishing, food pro...

Rock Island, city, United States

(Encyclopedia)Rock Island, city (1990 pop. 40,552), seat of Rock Island co., NW Ill., on the Mississippi and Rock rivers, adjacent to Moline and opposite Davenport, Iowa; inc. 1841. These three cities, with Bettend...

Sumner, Edwin Vose

(Encyclopedia)Sumner, Edwin Vose, 1797–1863, American soldier, Union general in the Civil War, b. Boston. He fought in the Black Hawk War and in the Mexican War. Made colonel of the 1st Cavalry in 1855, he was co...

Jefferson, Territory of

(Encyclopedia)Jefferson, Territory of, in U.S. history, region that roughly encompassed the present-day state of Colorado, although extending 2° farther south and 1° farther north, organized by its inhabitants (1...

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