Peerage Record – 40658

     William de Thweng, 2nd Lord Thweng was the son of Marmaduke de Thweng, 1st Lord Thweng and Isabel de Ros.¹ He married Catherine de Furnivalle, daughter of Thomas de Furnivalle, 1st Baron Furnivalle and Joan le Despenser.¹ He died in 1340.¹
     He gained the title of 2nd Lord Thweng.

     Margaret Postlethwaite was born in 1820.^1,2 She was the daughter of Samuel Postlethwaite and Anne Dunbar.² She died on 16 November 1891.^1,2

     Mary Field was born on 27 January 1801 at ‘Morven’, Princeton, New Jersey, U.S.A.^G.^1,2 She married Dr. William Dunbar, son of William Dunbar and Dinah Clark, on 25 March 1827 at Princeton, New Jersey, U.S.A.^G.^1,2 She died on 3 May 1875 at age 74 at Pass Christian, Harrison County, Mississippi, U.S.A.^G.^1,2 She was buried at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.²
     Her married name became Dunbar.²

     Helen Dunlop was born in 1811.^1,2 She was the daughter of James Dunlop and Margaret Dunbar.² She married Horatio Nelson Smith on 10 February 1831 at Greenfield^G.^1,2 She died on 8 January 1894.^1,2
     Her married name became Smith.² She was also known as Helen Dunlap.^1,2

     James Dunlop married Margaret Dunbar, daughter of William Dunbar and Dinah Clark, on 13 September 1806 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 He died on 8 April 1819.²

     Charlotte Dunbar was born on 16 February 1836 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was born on 16 February 1836 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was the daughter of Dr. William Dunbar and Mary Field.² She married Levin Rothrock Marshall II on 12 April 1858.² She married E. Hyde Rust on 28 December 1875 at Adams County, Mississippi, U.S.A.^G.² She died on 26 August 1906 at age 70 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She died on 26 August 1906 at age 70 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was buried at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.²
     Her married name became Rust.² Her married name became Marshall.²

     Field Dunbar was born on 7 January 1828 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 He was the son of Dr. William Dunbar and Mary Field.² He married Mary Brown Williams on 1 May 1851 at Woodbourne^G.² He died on 9 November 1854 at age 26 at ‘Scotland’, Concordia, Louisiana, U.S.A.^G.^1,2 He was buried at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.²
     Graduate of the College of New Jersey (later Princeton Univ). Was a medical doctor but did not practice. He managed a large estate, Scotland Plantation, in Louisiana.²

     Julia Dunbar was born on 5 December 1840 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was the daughter of Dr. William Dunbar and Mary Field.² She married George Frederick Greene on 28 April 1875.² She died on 23 October 1917 at age 76 at Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was buried at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.²
     Her married name became Greene.²

     Margaret Dunbar was born on 18 November 1837 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was the daughter of Dr. William Dunbar and Mary Field.² She married J. J. Calloway on 19 June 1879.² She died on 10 April 1903 at age 65.^1,2
     Her married name became Calloway.²

     Mary ‘Mapes’ Dunbar was born on 8 February 1832 at Forest Plantation, Natchez, Adams County, Mississippi, U.S.A.^G.^1,2 She was the daughter of Dr. William Dunbar and Mary Field.² She married Alfred Vidal Davis on 2 January 1869 at New Orleans, Louisiana, U.S.A.^G.²
     Her married name became Davis.²