Mabel Janetta Waldo-Sibthorp (1878-1964) (1878–1964) Parents Montagu Richard Waldo-Sibthorp Mabel Albinia Sutton Children Sir Hugh John Francis Sibthorp Cholmeley, 5th Bt. Rosamond Mary Edith Cholmeley Siblings Evelyn Elizabeth Waldo-Sibthorp Partners Walter John Lambert Sir Montague Aubrey Rowley Cholmeley, 4th Bt.