More information on Samuel Park from the censuses.
In the 1861 census he is listed as age 5. Father James and mother Elza (sic). Born Plumstead, Kent, civil parish Lee. Household listed as James 38, Elza 29, Martha 15 and Samuel 5.
In the 1871 census Samuel Parks, age 15, born 1856. Royal Navy, Portsmouth Harbour, Boy 2nd Class. Given as born Kennington, Surrey which seems odd so not sure if that is the right person.
In the 1881 census, Samuel Parks, birth about 1856 in Lee, Kent. Residence 1881 Vessels, Royal Navy, England. Age 25. "Superb", occupation Stoker, Royal Navy.
In the 1901 census, Samuel Parks and spouse Clara Parks. His birth place is given as Mayfield, Hailsham, Sussex, so this might not be the right person. Household given as Samuel Parks age 44, Clara age 43, Clara A age 22 and Mary E age 8.