His nephews include Richard Keynes ( born 1919 ) a physiologist ; and Quentin Keynes ( 1921 â `` 2003 ) an adventurer and bibliophile . His nephews include Richard Keynes ( 1919 â `` 2010 ) a physiologist ; and Quentin Keynes ( 1921 â `` 2003 ) an adventurer and bibliophile .