Lady Mary Hamilton (1896-1984) (1896–1984) Parents James Hamilton, 3rd Duke of Abercorn Rosalind Hamilton, Duchess of Abercorn Children Ursula Kenyon-Slaney Robert Kenyon-Slaney Vivien Kenyon-Slaney Alexander Gilmour Siblings Cynthia Spencer, Countess Spencer Lady Katharine Hamilton Lord Claud Hamilton James Hamilton, 4th Duke of Abercorn Partners Robert Kenyon-Slaney Sir John Gilmour, 2nd Baronet