Root, John Wellborn definition of Root, John Wellborn in the Free Online Encyclopedia.

Root, John Wellborn, 1850–91, American architect, b. Lumpkin, Ga. He worked in New York City with James Renwick and became a partner of D. H. Burnham Burnham, Daniel Hudson (bûr`nəm), 1846–1912, American architect and city planner b. Henderson, N.Y.
..... Click the link for more information. in Chicago. The firm created the modern type of highly organized architectural office suited to the planning of metropolitan buildings. Its partners were pioneers in the development of the steel-frame office building, and won international attention by their planning of the World's Columbian Exposition, Chicago, 1893. Root developed a type of ornament, based upon Romanesque design, that was later further developed by Louis Henry Sullivan Sullivan, Louis Henry, 1856–1924, American architect, b. Boston, studied at the Massachusetts Institute of Technology and the École des Beaux-Arts, Paris. He was of great importance in the evolution of modern architecture in the United States.
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Bibliography

See studies by H. Monroe (1896) and D. Hoffmann (1973).

Root, John Wellborn (1850–91) architect; born in Lumpkin, Ga. The primary designer in a partnership with Daniel H. Burnham (1873–91), he designed innovative iron- and steel-framed Chicago skyscrapers that shaped the Chicago school of architecture in the 1880s.