This is her article from thepeerage: "Hon. Dorothy Maud Vivian F, #58698, b. 9 July 1879, d. 18 October 1939 Consanguinity Index=0.0%
Hon. Dorothy Maud Vivian was born on 9 July 1879. She married Field Marshal Douglas Haig, 1st Earl Haig, son of John Haig and Rachel Mackerras Veitch, on 11 July 1905. She died on 18 October 1939 at age 60.
She was the daughter of Hussey Crespigny Vivian, 3rd Baron Vivian and Louisa Alice Duff. She held the office of Maid of Honour to HM Queen Victoria. She held the office of Maid of Honour to HM Queen Alexandra. Her married name became Haig. She was invested as a Dame of Grace, Order of St. John of Jerusalem (D.G.St.J.). As a result of her marriage, Hon. Dorothy Maud Vivian was styled as Countess Haig on 29 September 1919.
Children of Hon. Dorothy Maud Vivian and Field Marshal Douglas Haig, 1st Earl Haig
Lady Alexandra Henrietta Louisa Haig+1 b. 9 Mar 1907, d. 15 Aug 1997
Lady Victoria Doris Rachel Haig+ b. 7 Nov 1908, d. 1993
George Alexander Eugene Douglas Haig, 2nd Earl Haig+ b. 15 Mar 1918, d. 9 Jul 2009
Lady Irene Violet Freesia Janet Augusta Haig+ b. 7 Oct 1919, d. 2001."
Douglas Haig commanded UK forces in France during World War I.