Lewis Vernon Harcourt, 1st Viscount Harcourt, was born 21 January 1863 in Nuneham Courtenay, Oxfordshire, England, United Kingdom to William George Granville Harcourt (1827-1904) and Maria Theresa Lister (1831-1863) and died 24 February 1922 69 Brook Street, London, Greater London, England, United Kingdom of heart failure. He married Mary Ethel Burns (1873-1961) 1 July 1899 in Westminster, Greater London, England, United Kingdom.
|Doris Mary Thérèse Harcourt (1900-1981)||30 March 1900 St George Hanover Square, Greater London, England, United Kingdom||9 May 1981 Winchester, Hampshire, England, United Kingdom||Alexander Francis St. Vincent Baring, 6th Baron Ashburton (1898-1991)|
|Olivia Vernon Harcourt (1902-1984)|
|Barbara Vernon Harcourt (1905-1961)|
|William Edward Harcourt, 2nd Viscount Harcourt (1908-1979)|