Mr William McCarthy (Able seaman) was born in Cork City, Co Cork, Ireland around 1864. He was the son of Catherine McCarthy (b. 1831) but other details about his early life are unknown.
He came from a Roman Catholic family and had two known siblings, both sisters: May Ellen (b. 1872) and Kate (b. 1874).
His mother and sisters appear on the 1901 census living at 9 Grattan Hill, north Cork and on the 1911 census at the same address. William is not present on either record and it can be surmised that he was working at sea on both occasions.
When he signed on to the Titanic on 6 April 1912, McCarthy gave his address as 9 Grattan Hill Road, Cork, Ireland. His previous ship was the Castlemoor and as an able seaman his wages were £5 per month.
Following the disaster William returned to England aboard the Lapland and was not required to give evidence to either the US or British Inquiries into the sinking.
What became of William McCarthy in later years is not certain. It is possible he continued working at sea throughout WWI before retiring to his native Cork where he made a hobby out of creating ornamental anchors from wood and shell. He is believed to have died in the 1930s.