Christian Cockburn Peerage person ID=468000 Parents Adam Cockburn, Lord Ormiston Susanna Hamilton Children Sir John Sinclair of Longformacus, 4th Bt. unknown daughter Sinclair Christian Sinclair unknown daughter Sinclair Jean Sinclair Sir Henry Sinclair of Longformacus, 5th Bt. Siblings Charles Cockburn of Sandybed John Cockburn Jean Cockburn Anne Cockburn Partners Sir Robert Sinclair of Longformacus, 3rd Bt.