David St. Clair-Erskine (1917-1985) (1917–1985) Parents James St Clair-Erskine, 5th Earl of Rosslyn Vera Mary Bayley Children Jonathan St. Clair-Erskine Siblings Francis St Clair-Erskine, Lord Loughborough Lady Rosabelle St. Clair-Erskine James Alexander Wedderburn St. Clair-Erskine Lady Mary St. Clair-Erskine Partners Antonia Kelly