Educated at Yale University, Tallmadge graduated in 1773. He then taught school in Connecticut for some years. When war broke out in 1776, he was commissioned a major in the 2nd Continental Light Dragoons. He became a master spy and was head of George Washington's intelligence services. He founded the Culper spy ring and was responsible for the detection of Benedict Arnold as a spy during the famous Major Andre scenario. In 1780, Tallmadge led a successful raid on Cedar Beach in Newark and burned down Manor St. George. In March 1781, Tallmadge was appointed to serve in Washington's headquarters until the Continental Army was disbanded in 1783. Following the war, Tallmadge ran a dry goods shop until he was elected a Federalist congressman in 1801, serving until 1817. He was also the first president of the Phoenix Branch Bank. He was a founding member, and subsequent president of, the New York Society of the Cincinnati. His Memoir of Col. Benjamin Tallmadge was published posthumously in 1858.
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Memoir of Col. Benjamin Tallmadge
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