Pratt, Charles

Pratt, Charles

(1830–91) oil merchant, philanthropist; born in Watertown, Mass. One of 11 children, he grew up in adverse circumstances. He went to work at age 10 and moved to New York City in 1851. He specialized in paints and oils (1854–67) before he formed Charles Pratt & Company to refine crude oil at Greenpoint, N.Y. The resultant product was marketed worldwide as an illuminant. He sold his firm to John D. Rockefeller (1874) and then became immensely wealthy while working for Rockefeller's Standard Oil Company. He founded Pratt Institute in Brooklyn (1887) and the Pratt Institute Free Library and gave generously to various educational institutions.