Mr William James Gilligan Cosgrove was born in Ravarnet near Lisburn, Co Down, Ireland on 1 February 1888. Hailing from a Presbyterian family and one of six children, he was the son of William Cosgrove, a labourer, and Mary McCarthy.
William appears on the 1901 census living with his parents and siblings at 13 Paris Street in Belfast. On 11 January 1908 he married Matilda McComish (b. circa 1887) and their son William was born in June the same year. The 1911 census shows the family living at 52 Bowness Street off Belfast’s Shankill Road, with William being described as a general labourer.
Cosgrove’s ship prior to Titanic had been the Olympic. He joined Titanic at Belfast for the delivery trip to Southampton where he then disembarked. His younger brother John was also aboard the delivery trip.
William and his wife went on to have more children and William appears to have served during WWI. He was widowed in October 1915 when his wife Matilda died from heart failure.
William was remarried in March 1921 to widow Agnes Conn, née Devlin (b. circa 1888). They lived out their lives in Belfast where William died on 5 February 1962 at his home at 90 Carman Street. His widow Agnes died in 1964 and they are buried together in Belfast’s City Cemetery (plot B2 608).