The 1881 census in Brighton, shows Samuel Greenfield, age 54, a shoemaker, born Horsham, Sussex, and shows his wife Jemima, age 48, born Portslade.
The 1841 census of Horsham has 14 year old Samuel, an apprentice shoemaker, living with Edward and Elizabeth Greenfield, both age 50. They are still in Horsham in 1851, Edward gives his birthplace as Horsham, and Elizabeth's is Charlwood, Surrey.
(census entries on Findmypast)
Baptisms for Horsham, (on the Sussex Family History Group website) shows Samuel, son of Edward and Elizabeth Greenfield, baptised 23 June 1826.