Mr Henry Hart 1 was born in Drumiskabbole 2, Ballysadare, Co Sligo, Ireland in 1883.
He was one of seven children born to Michael Hart (b. 1843), a farmer, and Mary Cunningham (b. 1841). The family were Roman Catholic and versed in both Irish and English languages.
Henry's siblings were: Mary (b. 1867), Bridget (b. 1868), Francis (b. 1870), Michael Dominic (b. 1873), Catherine (b. 1879) and Patrick (b. 1884).
The 1901 census shows Henry's family residing at house 33 in Drumiskabbole and by the time of the 1911 census his father had passed away and his mother and brother Frank were residents of house 18 in Drumiskabbole. Henry does not appear on either record and was presumably already living in the USA; his brother Michael and sister Katherine (Mrs Wilhelm Schram) both lived in Brookline, Massachusetts; another sister, Bridget Collins, had died there in 1901.
He was married in Belmont, Massachusetts on 30 July 1911 to another Irish-American, Bridget Delia McGillicuddy (b. 1883), the daughter of Dennis McGillicuddy and Bridget Fahy. Delia was a native of Co Kerry and she and Henry reportedly worked together for a sugar company owned by E. F. Atkins in Belmont. The couple returned to Ireland aboard Cymric on 10 August 1911, Henry at the time being described as a cook, and reportedly settled in Co Kerry where Delia still had family.
Originally scheduled to travel aboard the Celtic, Hart instead boarded the Titanic at Queenstown as a third class passenger (ticket number 394140 which cost £6, 17s, 2d). Described as a general labourer, he was headed to Marion, Massachusetts where he had a relative, John Hart 3.
Henry Hart died in the sinking and his body, if recovered, was never identified.
His widow Delia had been pregnant at the time of the sinking and later gave birth to a son whom she named after his late father. Mother and son are believed to have spent the remainder of their lives in Co Kerry but what became of them is not certain.