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American Association for the Advancement of Science

(Encyclopedia)American Association for the Advancement of Science (AAAS), private organization devoted to furthering the work of scientists and improving the effectiveness of science in the promotion of human welfa...

James, Thomas, American fur trader and pioneer

(Encyclopedia)James, Thomas, 1782–1847, American fur trader and pioneer, b. Maryland. He accompanied the 1809 expedition of the Missouri Fur Company up the Missouri River. He left the expedition at the Mandan vil...

Dennie, Joseph

(Encyclopedia)Dennie, Joseph, 1768–1812, American Federalist journalist, b. Boston. As editor, he made the Farmer's Weekly Museum at Walpole, N.H., an influential paper, particularly because of the “Lay Preache...

Croghan, George, 1791–1849, American military officer

(Encyclopedia)Croghan, George, 1791–1849, American military officer, b. near Louisville, Ky.; nephew of George Rogers Clark and William Clark. He won public acclaim and a congressional award for his defense of Fo...

Hopkins, Mark, American railroad builder and merchant

(Encyclopedia)Hopkins, Mark, 1813–78, American railroad builder and merchant, b. Henderson, N.Y. A clerk in a village store and later a commission merchant in New York City, he was more than 35 years old when he ...

Astor, John Jacob, 1763–1848, American merchant

(Encyclopedia)Astor, John Jacob ăsˈtər [key], 1763–1848, American merchant, b. Walldorf, near Heidelberg, Germany. At the age of 16 he went to England, and five years later, in 1784, he arrived in Baltimore, p...

Mars, family of American food manufacturers

(Encyclopedia)Mars, family of American food manufacturers. Franklin Clarence Mars, 1882–1934, b. Hancock, Minn., was a chocolate manufacturer who produced candy at home before opening a candy factory (1911) in Ta...

Rodgers, John, 1812–82, American naval officer

(Encyclopedia)Rodgers, John, 1812–82, American naval officer, b. Harford co., Md.; son of John Rodgers. He became (1828) a midshipman and saw varied service. He conducted (1852–56) exploring expeditions in the ...

James, Henry, American novelist and critic

(Encyclopedia)James, Henry, 1843–1916, American novelist and critic, b. New York City. A master of the psychological novel, James was an innovator in technique and one of the most distinctive prose stylists in En...

American Federation of State, County, and Municipal Employees

(Encyclopedia)American Federation of State, County, and Municipal Employees (AFSCME), largest union of public employees in the United States. It began as a number of separate locals organized by a group of Wisconsi...