Sibyl Cadogan, daughter of Viscount Chelsea, his grandfather was Edward Stanley, 17th Earl of Derby, a British Ambassador to Paris.

[1] John Stanley served with the Grenadier Guards in the Second World War, being promoted to Major, and was awarded the Military Cross for gallantry during the Italian Campaign.

[7] A director of Martins Bank and of Granada Television, Lord Derby created Knowsley Safari Park in 1971 on his ancestral estate.

[8] The Earl of Derby Scout Troop planted a tree and erected a stone plaque in the grounds of Knowsley Hall in celebration of the quincentenary (1985) of the earldom's creation.

Lady Derby, who survived a deliberate attempt on her life in 1952, died in 1990; Lord Derby survived her by four years and died in 1994, aged 76, being succeeded in the family titles by his nephew, Edward Stanley as the 19th Earl.