Vera Mary Bayley (d. 1975), a daughter of Eric Edward Bayley of Little Moyle in County Carlow. Together, they were the parents of: Maj. Hon. James Alexander Wedderburn St Clair-Erskine (1909–1973) Lady Mary Sybil St Clair-Erskine (b. 1912), who married Sir Philip Dunn, 2nd Baronet (1905–1976), a son of Sir James Dunn, 1st Baronet, in 1933. They divorced in 1944 and she married, secondly, Capt. Robin Francis Campbell, only son of Rt. Hon. Sir Ronald Hugh Campbell in 1946. They divorced in 1958 and she married Charles Raymond McCabe in 1962. They divorced in 1969 she remarried her first husband, Sir Philip. Maj. Hon. David Simon St Clair-Erskine (1917–1985), who married Antonia Mary Kelly (d. 1965), the only daughter of Admiral of the Fleet Sir John Donald Kelly in 1948. They divorced in 1958. Lord Rosslyn died on 10 August 1939 and was succeeded by his grandson, Anthony. His widow, the dowager Countess of Rosslyn, died on 24 February 1975. Descendants Through his eldest son, Lord Loughborough, he was a grandfather of Anthony Hugh Francis Harry St Clair-Erskine, 6th Earl of Rosslyn (1917–1977), who married Athénaïs de Mortemart, only daughter of Louis Victor de Mortemart, Duc de Vivonne, and the Hon. Peter George Alexander St Clair-Erskine (1918–1939) of the Royal Air Force. Through his youngest daughter, Lady Mary, he was a grandfather of Serena Mary Dunn (1934–2019), who married Jacob Rothschild, 4th Baron Rothschild; and Nell Mary Dunn (b. 1936), who married Jeremy Sandford and became a playwright and author. References Notes Sources Earls in the Peerage of the United Kingdom 1869 births 1939 deaths James British Army personnel of the Second Boer War