Sir John Buchanan-Riddell, 11th Baronet British lawyer (1849-1924) (1849–1924) Parents Frances Sophia Cholmondeley John Charles Riddell Children Olive Frances Riddell Katherine Margaret Riddell Dorothy Isabel Riddell Sir Walter Riddell, 12th Baronet Siblings Frances Mary Riddell Henry Edward Riddell Charles Sydney Riddell Mary Amelia Riddell Sophia Anne Riddell Robert George Buchanan Riddell Margaret Charlotte Riddell Partners Sarah Isabella Wharton