Ann Semark of Thornhaugh is the 15th Grandparent of the husband of Kathleen Kennedy, Sister of John F Kennedy.
Kathleen Kennedy [b 1920 d 1948] married Marquess William John Robert Cavendish [1944]
Joseph Patrick Kennedy (1888-1859) married Rose Fitzgerald
Children inc
35th President John Fitzgerald Kennedy
William’s Line
Edward William Spencer Cavendish [1895-1950]
1st Grandparent
Victor Christian William Cavendish [1868-1938]
2nd Grandparent
Lord Edward Cavendish [1838-1891]
3rd Grandparent
Blanche Georgina Howard [1812-1840]
4th Grandparent
Georgina Dorothy Cavendish
5th Grandparent
Duke William Cavendish [1748-1811]
6th Grandparent
Duke William Cavendish [1720-1764]
7th Grandparent
Rachel Russell [1676-1725] married Duke William VI Cavendish [1698-1757]
8th Grandparent
Lord William Russell [1639-1683], Beheaded in Lincoln’s Inn Fields, 21st July 1683
9th Grandparent
Duke William Russell [1613-1700], Earl of Bedford 11th May 1694, Created Marques of Tavistock and Duke of Bedford circa 7th September 1700
10th Grandparent
Earl Frances Russell [1593-1641] Baron Thornhaugh and 4th Earl of Bedford
11th Grandparent
Lord William Russell [1562-1613] Created Baron Russell of Thornhaugh
12th Grandparent
Francis Russell [1527-1585] 2nd Earl of Bedford
13th Grandparent
John Russell [1485-1554] married Ann Sapcote [died 1558], Earl of Bedford
14th Grandparent
15th Grandparent
Ann Semarc of Thornhaugh Northants see St Medard Tree