Percy Robert Pook was born in Torquay, Devon, England in mid-1876 and his birth was registered in the June quarter of that year. He was the son of Henry Pook (1843-1908) and Kate Manley (b. 1851), both Torquay-natives who had married in 1872 and who would have at least nine children: Henry James (b. 1870), Annie (b. 1874), Clara (b. 1875), Florence (b. 1877), Maud (b. 1878), Reginald Octavius (b. 1880), Nina Kate (b. 1883), Dorothy Eveline (b. 1891) and Percy.
Percy first appears on the 1881 census with his family at Park View, Tormoham, Torquay and his father is described as a house decorator. On the 1891 census the family have moved to 10 St Marks Place in Torquay and Percy is now described as a grocer's assistant, his father as an organist. Percy is still as grocer's assistant by the time of the 1901 census but the family have now moved to 83 Alexandra Road, Plymouth. He is not present on the 1911 census.
When Percy signed-on to the Titanic, on 4 April 1912, he gave his address as 22 Chantry Road, Southampton. His last ship had been the Olympic. As a pantry steward he received monthly wages of £3 15s.
Percy Pook died in the sinking. His body, if recovered, was never identified.
Percy's mother, who had been widowed in 1908, died in 1926 in London.