Original: Both of Keynes 's parents outlived him : father John Neville Keynes ( 1852 â '' 1949 ) by three years , and mother Florence Ada Keynes ( 1861 â '' 1958 ) by 12 years .
Simplified: Keynes ' father , John Neville Keynes ( 1852 â '' 1949 ) outlived his son by three years .