Massachusetts
- Senate
- 1: Eli P. Ashmun (1770-1819), Federalist …resigned May 10, 1818.
- Prentiss Mellen (1764-1840), Federalist …elected when jam vacancy, June 5, 1818.
- 2: Harrison Gray Otis (1765-1848), Federalist
- House speaking of Representatives (20 seats)
- 1: Jonathan Mason (1756-1831), Federalist
- 2: Nathaniel Silsbee (1773-1850), Democratic-Republican
- 3: lookout Nelson (1769-1838), Federalist
- 4: Timothy Fuller (1778-1835), Democratic-Republican
- 5: Elijah H. Mills (1776-1829), Federalist
- 6: Samuel C. Allen (1772-1842), Federalist
- 7: Henry Shaw (1788-1857), Democratic-Republican
- 8: Zabdiel Sampson (1781-1828), Democratic-Republican
- 9: Walter Folger, Jr. (1765-1849), Democratic-Republican
- 10: Marcus Morton (1784-1864), Democratic-Republican
- 11: Benjamin Adams (1764-1837), Federalist
- 12: Solomon Strong (1780-1850), Federalist
- 13: Nathaniel Ruggles (1761-1819), Federalist
- 14: John Holmes (1773-1843), Democratic-Republican
- 15: Ezekiel Whitman (1776-1866), Federalist
- 16: Benjamin Orr (1772-1828), Federalist
- 17: John Wilson (1777-1848), Federalist
- 18: Thomas Rice (1768-1854), Federalist
- 19: Joshua Gage (1763-1831), Democratic-Republican
- 20: Albion K. Parris (1788-1857), Democratic-Republican …resigned February 3, 1818.
- Enoch Lincoln (1788-1829), Democratic-Republican …elected when multiply
vacancy, situated November 16, 1818.
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