 He married Kathleen Alice (died 1986), daughter of Robert Louis George Gunther, of 8, Prince's Gardens, S.W., and Parkwood, Englefield Green, Surrey, in 1923; they divorced in 1933, having had two sons and two daughters, the elder of whom, Mary, married Anthony Gerard Edward Noel, 5th Earl of Gainsborough, and had eight children, including the 6th Earl of Gainsborough.Stourton married secondly Gladys Leila (died 1953), daughter of Sir William James Waldron, in 1934, and divorced in 1947.John Stourton died in 1992 in Eastbourne, Sussex aged 92.