Natasha Gregson (Wagner) is the daughter of late Natalie Wood by her second husband, Richard Gregson, who has just died.
His obit., in _The Telegraph_, states, "Richard John Gregson was born in Poona on May 5, 1930, the youngest of the four children of Captain Donald Gregson, 3rd Indian Cavalry. His mother, Violet Hanson, was the daughter of Sir Francis Hanson ..."
At which point the obituary cuts off for me.
https://www.telegraph.co.uk/obituaries/2019/10/28/richard-gregson-film-producer-oscar-nominated-screenwriter-agent/
This website below, on the ethnicity of various celebrities, fails to mention that Violet Hanson's father was a knight, and doesn't trace the Hanson and Winter lines at all:
"Natasha’s paternal grandparents were Donald Gregson and Violet Hanson (the daughter of Francis Hanson and Pearl Winter)."
https://ethnicelebs.com/natasha-gregson-wagner
The whole line of these Hansons is given here (apparently from a Burkes-like publication of some sort).
Lineage ~
Joshua Hanson, of Woodside near Fernley, County York married August 13, 1723, Grace Hes [?; maybe Hesketh] of Knaresborough, widow and left with other issue a son, Samuel Hanson born March 16, 1726 married August 24, 1748, Anne (died April 12, 1774) the daughter of William Sharp of Waltham St. Lawrence, Berks and died May 1798 leaving issue by her a son, Samuel Hanson of Botolph Lane, London, baptised November 8, 1752 married September 25, 1802, Anne Letts (died June 1840) of Cornhill London, and by her had with other issue, Samuel of whom hereafter.
Samuel Hanson of Btotlph Lane, Epsom, Surrey; Ramsgate, Kent and Harley Street and KIlburn, Middlesex born September 11, 1804; married 1st August 11, 1832, Mary Choppin (died January 18, 1867) the daughter of Nathaniel Smith Machin of Bishop Stortford, County, Hertford and by her had issue, with a son (died and infant), and three daughters (died unmarried). ...
His 2nd son, Sir Reginald Hanson, 1st Bt. Knight, M.A. LL.D. Camb., F.S.A., one of H.M.'s Lieuts for City of London, J.P. and D.L. Tower Hamlets and Middlesex, J.P. Westminster and London, M.P. for City of London 1891 to 1900 hon. Col. 6th Bn. Royal Fus., City of London Regt., 1881, Lord Mayor of London 1886-87, born May 31, 1840; created a Baronet June 6, 1887 married May 10, 1866 to Constance Hallett (died July 28, 1927) the daughter and co-heir of Charles Bentley Bingley of Stanhope Park, Middlesex and had issue
2) Francis Stanhope (Sir), Knight, Alderman and Lieut. for City of London, Sheriff 1908, mem. of L.C.C. 1907, Lt-Col. 6th Bn. Royal Fus., City of London Regt., born October 3, 1868; married January 20, 1897 to Pearl Norcott the daughter of Charles Albert Winter, J.P. of 33, Hyde Park Square W. He died February 17, 1910 having by her (who married 2nd 1926 Major Henry Noel Winter of Srathbogie, Pembury, Kent, son of late Lt. Col. N.N. Winter) had issue,
b) Violet Gwendoline Pearl (Old Chimney Cottage, Chideock, Bridport, Dorset) born March 31, 1899 married 1st March 4, 1919 William Bullivant yr. son of late William Pelham Bullivant of New Mills Court, Stroud. This marriage was annulled on her petition 1923 and she married 2nd August 29, 1924 (marriage dissolved by divorce 1944), Capt. Donald Selfe Leonard Gregson, late 3rd Ind. Cav and has issue.
https://coadb.com/surnames/hanson-arms.html
As Sir Francis Hanson's wife was Pearl Norcott Winter, daughter of Charles Winter, and she (Pearl) remarried to a Maj. Henry Winter of Kent, one of whose middle names was also Norcott, I'm guessing there is some descent, perhaps for both Pearl and her second husband, from one "Emily Dorcas [Norcott], bapt. 29 Oct., 1813, at Buttevant Church, m. there on 18 Jan., 1840, Capt. Charles Winter, 76th Foot, of Bridge Hill, Canterbury."
https://books.google.com/books?id=RYQjAQAAIAAJ&pg=PA429&dq=%22col+n+n+winter%22&hl=en&ppis=_c&sa=X&ved=2ahUKEwiym-6x_cHlAhWliOAKHSGUDdwQ6AEwAXoECAAQAg#v=onepage&q=%22col%20n%20n%20winter%22&f=false
https://books.google.com/books?id=MWSiYp0-AGEC&pg=PA542&dq=%22bridge+hill%22+winter+kent&hl=en&ppis=_c&sa=X&ved=2ahUKEwiavc_rg8LlAhWSMd8KHdAJBkUQ6AEwAHoECAEQAg#v=onepage&q=%22bridge%20hill%22%20winter%20kent&f=false
https://babel.hathitrust.org/cgi/pt?id=uc1.$b759449&view=1up&seq=213
This was the Anglo-Irish Norcott family of Springfield, co. Cork, in Ireland.