Mr Patrick O'Connor was born in Boherboy, Co Cork, Ireland on 30 May 1888.
He was the youngest child of James O'Connor (b. 1842), a farmer, and his wife Abina "Abbie" (b. 1846), Cork natives who had married around 1870. One of eleven children born to his parents, his known siblings were: Ellie (b. 1882), John (b. 1884) and Julia (b. 1886). He grew up in a Roman Catholic household.
John first appears on the 1901 census living in house 5 in Tooreenavuscaun 1, Boherboy, Co Cork. By the time he appears on the 1911 census he described as a farmer's son and now living at house 9 in Tooreenavuscaun.
He boarded the Titanic at Queenstown (ticket number 366713 which cost £7, 15s) and he was destined for an unknown address in New York City. Travelling with him was his cousin Hannah Riordan and others from his general locale in Cork: Bridget Bradley, Nora O'Leary, Patrick Denis O'Connell and Michael Linehan. He is believed to have shared a cabin with his fellow Cork men.
Patrick O'Connor died in the disaster. His body, if recovered, has never been identified.