. . . . "1911-03-30Z"^^ . "1911Z"^^ . "American chemist" . . "Richards, Ellen H."@en . . . . "Ellen Henrietta Swallow (Nellie)"@en . . . "1842Z"^^ . . . "Richards, Ellen Swallow"@en . "Ellen Henrietta Swallow Richards (December 3, 1842 \u2013 March 30, 1911) was an industrial and environmental chemist in the United States during the 19th century. Her pioneering work in sanitary engineering, and experimental research in domestic science, laid a foundation for the new science of home economics."@en . "Ellen H. Swallow Richards"@en . . . "1842-12-03Z"^^ . . . . .