. "Ferdinand William Cavendish-Bentinck, 8th Duke of Portland" . . . "1980" . . . "Ferdinand W. Cavendish-Bentinck" . . . . . . "8th Duke of Portland" . . . . . "Ferdinand Cavendish-Bentinck, 8th Duke of Portland" . . . "Ferdinand William
Cavendish-Bentinck,
'''8th Duke of Portland'''
9th Earl of Portland" . . "Ferdinand Cavendish-Bentinck" . . "Sir Ferdinand Cavendish-Bentinck" . . . "The 8th Duke of Portland" . "Ferdinand" . "Ferdinand Cavendish-Bentinck, 8th Duke of Portland" . . . "1889" . . . . . . . . . "Ferdinand William Cavendish-Bentinck" . . "the Duke of Portland" . .