Simeon De Witt was Geographer and Surveyor General of the Continental Army during the American Revolution and Surveyor General of the State of New York for the fifty years from 1784 until his death.

DeWitt Clinton was an American politician and naturalist. He served as a United States senator, as the mayor of New York City, and as the sixth governor of New York. In the last capacity, he was largely responsible for the construction of the Erie Canal. Clinton was a major candidate for the American presidency in the election of 1812, challenging incumbent James Madison.