On 19 June 1922 Peake married Lady Joan Rachel de Vere Capell (1899–1979), younger daughter of George Capell, 7th Earl of Essex and Adele Capell, Countess of Essex.
On June 19, 1922, Peake married Lady Joan Rachel de Vere Capell (born in 1899 and died in 1979), the younger daughter of George Capell, 7th Earl of Essex and Adele Capell, Countess of Essex.