James Pollard Espy (May 9, 1785 - January 24, 1860) was an American scientist known for his contributions to meteorology and geography. Espy was recognized for his work in cartography and meteorological observations.
Source: Message from the President of the United States: Communicating, in Compliance with a Resolution of the Senate of July 24, 1854, the Fourth Meteorological Report of Prof. James P. Espy