Henri Marie Jaillet was born in Lyon, Rhône-Alpes, France on 26 October 1873. He was the son of Charles Frédéric Jaillet (b. 1844) and Joséphine Marie Guillermet (b. 1851).
It is likely Henri first came to England in the early 1900s and he was married in Suffolk on 14 September 1903 to Lydia Florence Hutton (b. 1876 in Holburn, London). The couple had a child, Henri Marie Victor (b. 1 August 1907) but Lydia died around the same time, possibly during childbirth.
Henri was remarried in London in early 1911 to Margaret Meffen Brodie Farquharson (b. 1885), a native of Edinburgh, Scotland, the daughter of James C. and Elizabeth Farquharson. The couple appeared on the 1911 census living at Luckham, Colerne, Chippenham, Wiltshire where Henri was described as a domestic chef in the employ of Baron William MacBride.
Henri and Margaret went on to have a child, Frederick Ronald, who was born in London on 25 June 1911.
When he signed-on to the Titanic, on 6th April, 1912, Henri gave his address as 4 Queens Park Terrace, London and his previous ship as the Lusitania. As a member of the à la carte restaurant he was employed, and therefore paid, by Mr Gatti.
Jaillet died in the sinking. His body was recovered by the Mackay-Bennett (#277), on 30 April 1912 and his effects were given to the agent of the White Star Line A. G. Jones & Co. for delivery to his relatives in England. He was buried at Mount Olivet Cemetery, Halifax, Nova Scotia on 10 May, 1912.
NO. 277 - MALE - ESTIMATED AGE, 35 - VERY DARK HAIR AND MOUSTACHE
CLOTHING - Checkered trousers; blue coat and vest; dark overcoat; blue and white striped pyjamas; brown boots; "H. J." on pyjamas.
EFFECTS - 3s. 10d. in purse; knife; a card with "H. Jaillet (Chef).
His widow and children, including his mother-in-law from his previous marriage, Sarah Hutton, received financial support from the Titanic relief fund as Class B dependants (widow £1, 12s 6d a week, children 5s, 6d per week and mother-in-law 3s, 6d every week).
His widow never remarried and remained in London where she died in 1947.
His son Frederick was married in 1935 to Olive Ivy Harrod (b. 1911) and they had one child. Frederick died in Norfolk in 1995.
His son Victor later emigrated to Australia and died in Brisbane in 1990.