William Crispin was born in 1879 in New Brighton, Cheshire, England and his birth was registered in the first quarter of that year. He was the son of William John Crispin (1846-1919) and Hannah Stafford (1846-1928), both Liverpool natives who married there in 1872.
William had two known siblings out of a total of five: John Bennett (b. 1873) and Edith Annie (b. 1875).
William and his family first appear on the 1881 census living at 29 Richmond Street, Liscard, Cheshire. They have moved to 79 Union Street, Liscard by the time of the 1891 census. William's father was described as an insurance clerk for the Liverpool Insurance Company. On the 1901 census the family have again relocated, now at Witham (?) Lane, Liscard. William, aged 22, was described as a cycle maker.
William was married in St Saviour Church, Liverpool on 12 June 1910 to Jessie Anita Smith (b. 31 January 1876 in Liverpool, daughter of George and Agnes Smith). He would be absent from the 1911 census but his wife was living with her stepmother Mary Jane Smith at 111 Huskisson Street, Abercromby, Liverpool. They would have a son, William George, later on 22 July 1911.
When William signed-on to the Titanic, on 9 April 1912, he gave his address as Santory Villa, Station Hill, Eastleigh, (Hampshire). His last ship had been the Olympic. As a glory-hole steward he received monthly wages of £3 15s
Crispin died in the sinking. His body, if recovered, was never identified.
His widow Jessie never remarried and remained in Liverpool where she died in 1949. His son William George was married in Liverpool in 1940 to Winifred M. Hardie and they had one child, a daughter named Sheila. William George Crispin died in Ulverston, Lancashire in 1987.