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Samuel Swan (1771, near Scotch Plains, New Jersey – August 24, 1844, Bound Brook, New Jersey), was an American medical doctor who served as a five-term U.S. Congressman, serving from 1821 to 1831.

After studying medicine, Swan began to practice in Bound Brook, from 1800 to 1806 and then moved to Somerville from 1806 to 1809.

Before going to Washington, he also served as sheriff of Somerset County for two years and county clerk for 12 years.

He was elected to U.S. House of Representatives for the Seventeenth, Eighteenth, Nineteenth, Twentieth, and Twenty-first United States Congresses, serving from March 4, 1821, to March 3, 1831.

He was an at-large representative for all but his second term, during which he represented the 2nd congressional district. He retired without seeking renomination. Although he did not formally represent a party when elected to the House, he was eventually affiliated with the Whig Party.

After his congressional career, he returned to practicing medicine.

He is buried in the Presbyterian Cemetery in Bound Brook.

• United States Congress. "Samuel Swan (id: S001088)". Biographical Directory of the United States Congress.