Sir Hedworth Williamson
6th Bart of East Markham and of Whitburn Hall, Sheriff of Durham
  Son of:  
died: 1810
  x Maria Hamilton
    the following children were born of this union:
1. Sir Hedworth Williamson, 7th Bart of East Markham born 01/11/1797 died 24/04/1861
2. William Hamilton Williamson born 03/08/1800 died 02/04/1884
3. Robert Hudleston Williamson bon 05/04/1810 died 14/08/1869
4. Maria Dorothea Williamson died 1846
5. Elizabeth Anne Williamson died unmarried 1822
6. Sophia Jane Williamson

Sophia Jane Williamson

Daughter of: Hedworth Williamson
and: Maria Hamilton
born: 21/11/1803
died: 21/5/1865
  x Saturday 6 September 1823 Thomas Dundas 2nd Earl Zetland
  No issue

Jane Melanie Wright

Daughter of: Erenest Frederick Wright.
  x 20/6/1974  Richard Bruce Dundas (divorced 1981)
    the following children were born of this union:
1. Max Dundas
2. Emily Louisa Dundas

Henry Walker Yeoman
Son of: Henry Walker Yeoman
and: Ann Hale
born: 1789
died: Tuesday 14 September 1875
  x Monday 5 February 1816  Margaret Bruce Dundas (his cousin)
  the following children were born of this union:
  Henry Walker Yeoman born 1816
  Thomas Lawrence Yeoman born 1819
  Constantine Bernard Yeoman born 1823
  George Dundas Yeoman born 1835
  Robert Charles Yeoman born 1838
  Charlotte Yeoman

Charles Henry Fitzroy
4th Baron Southampton
Son of: CharlesFitzroy, 3rd Baron Southampton
and: Ismania Katherine Nugent
born: 11/5/1867
died: 7/12/1958
  x 9/7/1982 Lady Hilda Mary Dundas
  the following children were born of this union:
1. A daughter who died 1893
2. Dorothy Fitzroy born 26/3/1895 died 27/11/1957 married 6/7/1916 John McKerrell-Brown
3. Victoria Alexandrina Fitzroy born 25/6/1898 married 21/1/1925 William Vandeleur Beatty (div 1941)
4. Charles Fitzroy, 5th Lord Southampton born 3/1/1904. Married 1st 22/6/1927 Margaret Drake (d 3/2/1931)married 2ndly 12/1/1940 Phyllis Joan Leslie (div 1944) married 3rdly, 3/2/1951 Rachel Christine Zaman (d 1985). Charles Fitzroy died 1989, having disclaimed the title in 1964. His son Charles James Fitzroy (born 1928) succeeded to the title as 6th Baron Southampton.

Enid Rosamond Lawrence
Daughter of: Geoffrey Lawrence, 1st Lord Oaksey
born: 1924
  x 1950  Hugh Spencer Lisle Dundas
    the following children were born of this union:
1. James Frederick Trevor Dundas
2. Sarah Jane Dundas
3. Amanda Rose Dundas