Lady Mary Noel Beauclerk, was the sixth daughter and eighth child of William Beauclerk, 8th Duke of St Albans, and his second wife, Maria Janetta Nelthorpe, and was born 28 December 1810.; 
She married 15 December 1836, Thomas George Corbett, Esquire of Elsham Hall, county Lincoln and had issue 3 daughters, of whom only 1 survived to become heir of Elsham Hall;
Eleanor Blanche Corbett, baptised 4 October 1837 at All Saints, Elsham, Lincolnshire, and was buried there 5 July 1838;
Eleanor Blanche Mary Corbett, baptised at All Saints, Elsham, 16 December 1838, married 22 May 1858, Sir John Dugdale Astley, 3rd Baronet, Member of Parliament (born 19 February 1828, died 10 October 1894) and died 7 June 1897 having had issue of 6 children.
Sibyl Elizabeth Corbett, baptised 8 November 1840 at All Saints, Elsham, and was buried there 10 February 1849.
Lady Mary Corbett died 29 November 1850, and was buried at All Saints, Elsham on 5 December 1850.her husband died 5 July 1868,  and was buried at Elsham on 31 July 1868.
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It may be possible to confirm family relationships with Mary by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Mary: