J J Stevenson (geologist)

John James Stevenson (October 10, 1841–1924) was an American geologist, born in New York City. He graduated at New York University in 1863, became professor of chemistry at West Virginia University for two years (1869–71), then served as professor of geology at New York University until 1909. In 1873-74 and 1878-80 he was geologist on the United States Geological Survey. He also served on the Pennsylvania Geological Survey in 1875-78 and 1881-82. He was president of the Geological Society of America in 1898. He wrote contributions of permanent importance.