William Sivier was a Third Class Steward of the Titanic. He died in the sinking. He was born at Westbourne Street Mews, Paddington, London 1, England on 23 December 1888, being baptised on 19 May the following year in St James' Church, Paddington. He was the son of a domestic coachman, Thomas William Sivier (b. 1853), a native of the Isle of Wight, and Annie Woodcock (b. 1861), who hailed from Retford, Nottinghamshire. The couple had married in Derbyshire in 1881 and had three more children (that are known of) besides William: Ellen (b. 1885), Thomas (b. 1886) and Henry (b. 1891).