[2] They had three sons, two of whom predeceased their mother:[3] Horace and Olive Smith-Dorrien informally adopted Power Palmer's two daughters (Frances Gabrielle and Celia de Courcy), who were left homeless after his second wife's death in 1912.
[13] She also served as President of the animal welfare charity, The Blue Cross, working to alleviate the suffering of war horses during.
[3][16] Her husband Horace Smith-Dorrien died on 12 August 1930 following injuries sustained in a car accident at Chippenham, in Wiltshire; he was 72 years old.
His body was buried at the Three Close Lane Cemetery of St Peter's Church, Berkhamsted in Hertfordshire.
[17][18][19] Smith-Dorrien outlived her husband by more than twenty years and died on 15 September 1951 in the Chelsea area of London.