Catherine Colquhoun (died 1804) (d. 1804) Parents Sir James Colquhoun of Luss, 1st Bt. Helen Sutherland Children unknown daughter Mackenzie unknown daughter Mackenzie Lewis Mackenzie, younger of Scatwell Sir James Wemyss Mackenzie of Scatwell, 5th Bt. Siblings Janet Colquhoun Sir James Colquhoun of Luss, 2nd Bt. Ann Sutherland Colquhoun Margaret Colquhoun William Colquhoun Helen Colquhoun Ludovic Colquhoun Partners Sir Roderick Mackenzie of Scatwell, 4th Bt.