Mr John Mawhinney was born in Belfast, Ireland around 1855 1 into a Church of Ireland family.
John and Mary, his wife of thirty years by 1911, appear on the 1901 census living at 14 Clonallen (?Clonallan, Clonallon) Street in east Belfast. By the time of the 1911 census they were living at 7 Wolff Street and, on both occasions, John was described as a seafarer. They had three children.
Mawhinney’s ship prior to Titanic had been the Olympic. He joined Titanic at Belfast for the delivery trip to Southampton where he then disembarked.
John Mawhinney’s final address was 24 Clonallen Street. He died there on 27 October 1918 and he and his wife Mary (who died in 1920) are buried in Belfast’s City Cemetery (plot D1 8).