Sir James Cockburn of that Ilk, 3rd Bt. d.1780 (d. 1780) Parents Sir William Cockburn of that Ilk, 2nd Bt. Helen Lermonth Children unknown son Cockburn unknown son Cockburn Sir Williams James Cockburn of that Ilk, 4th Bt. unknown son Cockburn Siblings unknown daughter Cockburn unknown daughter Cockburn unknown daughter Cockburn unknown daughter Cockburn unknown daughter Cockburn Partners Mary Rochead Phoebe Sharman