Lady Mary St. Clair-Erskine (1912-1993) (1912–1993) Parents Vera Mary Bayley James St Clair-Erskine, 5th Earl of Rosslyn Children Nell Dunn Serena Rothschild Brigid Dunn Siblings James Alexander Wedderburn St. Clair-Erskine David St. Clair-Erskine Francis St Clair-Erskine, Lord Loughborough Lady Rosabelle St. Clair-Erskine Partners Philip Gordon Dunn Raymond McCabe Robin Francis Campbell