PLUMER, William (plum'-mer), senator, born in Newburyport, Massachusetts, 25 June, 1759; died in Epping, New Hampshire, 22 June, 1850. His ancestor, Francis. emigrated from England in 1634, and was one of the original grantees of Newbury. William removed to Epping, New Hampshire, at eight years of age, received an academical education, was admitted to the bar in 1787, and soon established a reputation as an advocate. He also took an active part in state politics, was solicitor for Rockingham county for many years, served in the legislature for eight terms, during two of which he was speaker, and was president of the state senate in 1810-'11. In 1792 he was a member of the New Hampshire constitutional convention, and was active in the revision of the statutes. He was elected United States senator in 1802 to fill the vacancy occasioned by the resignation of James Sheafe, served till 1807, and was governor of New Hampshire in 1812-'16, and again in 1817-'18. He was a presidential elector in 1820, casting the only vote in opposition to the re-election of President Monroe, to whom he objected on account of his financial embarrassments. This was his last public service. For the remaining thirty years of his life he devoted himself to literary pursuits, and contributed regularly to the press under the signature of "Cincinnatus." He published "Appeal to the Old Whigs" (Washington, 1805) and "Address to the Clergy" (1814), and left valuable historical and biographical manuscripts. See his life, by his son, with a memoir of the latter, edited by Andrew P. Peabody (Boston, 1857).--His son, William, congressman, born in Epping, New Hampshire, 9 October, 1789" died there, 18 September, 1854, was graduated at Harvard in 1809, studied law under his father, and was admitted to the bar in 1812. He was United States commissioner of loans in 1816-'17. a member of the legislature in 1818, and was elected to congress as a Democrat, serving by re-election from 1819 till 1825. He was an ardent Abolitionist, and delivered several speeches in congress in opposition to the admission of Missouri into the Union as a slave state. He was in the New Hampshire senate in 1827-'8, and declined a re-election in 1830, and the appointment of district attorney. He subsequently devoted himself to literary pursuits, and his last public service was as a member of the State constitutional convention in 1850. Mr. Plumer was an accomplished speaker and writer. He gave much time to historical and biographical research, and was an active member of the New England historic-genealogical society. Two volumes of his poems were printed privately (Boston, 1.841 and 1843), and he published "Lyrica Sacra" (1845) and "Pastoral on the Story of Ruth" (1847), and, in part, edited the life of his father, mentioned above.