Jack was the son of John and Mary Hyde (née James).
His father John Hyde was born in Hitchen, Hertfordshire, in about 1852 and his mother Mary James in Penzance, Cornwall, in about 1853. They were married at Arnold St Mary in October 1875 and had twelve children of whom only seven survived infancy or childhood: John birth registered 1876 (J/F/M) d. 1878; James b. Arnold 1877 bap. Arnold St Mary 1880; Emma b. Arnold 1879 bap. St Mary 1880 d. 1881; Sarah Ann b. Hucknall birth registered 1883 (J/F/M) bap. Hucknall St Mary Magdalene 1883; William b. Hucknall 1884 bap. St Mary Magdalene 1885; Mary Jane b. Hucknall 1887 bap. St Mary Magdalene 1888 d. 1888; Edward b. Hucknall 1889; Alice b. Hucknall 1891 bap. Hucknall St John the Evangelist 1892; Alfred b. 1896 d. 1896; Jack b. Bulwell 1897 bap. Bulwell St Mary the Virgin 17 August 1898; George b. 1900 d. 1908 and Hilda b. Bulwell 1902.
In 1881 John (28) a railway plate layer, and Mary (23) a seamstress, were living in Newton's Yard, Arnold, with their two children James and Emma. Their first child, John, born in 1876, had died two years later. Emma died toward the end of 1881. Another daughter, Mary Jane, was born in 1887 but died the following year.
John and Mary were living on Wellington Street, Hucknall by 1891. Of their seven children only four survived: James, Sarah Ann, William and Edward. They had a fifth son, Alfred, in 1896 but he died the same year.
Their fourth daughter, Alice, was born in Hucknall toward the end of 1891 and was baptised at the parish church in August 1892; the family was then living at 30 Betts Street, Hucknall.
The family had moved to 21 Crown Street Nottingham by 1901. Of John and Mary's eleven children only seven were still living and all were in the home on the night of the census: James a coal miner, Sarah a lace mender, William a potter, Edward, Alice, Jack and George who died in 1908 aged eight.
John and Mary were living at 6 Bell Terrace, Portland Street, Daybrook, by 1911. John was now working as a bricklayer's labourer. Only three children were still at home, Edward, who was also a bricklayer's labourer, Jack and Hilda.
John and Mary moved again after 1911, this time to 7 Cottage Row, Daybrook, Nottingham. Jack was still living with his parents when he attested in 1914. His brother Edward was also still living at home when he enlisted in the Army (k. 1916).
Jack's mother Mary completed a form for the Army in May 1919 listing his surviving blood relatives; she named herself and her husband, both of 7 Cottage Row, and Jack's two brothers and three sisters: Jim [James] (45) Wombwell Barnsley; William (34) Gedling Grove Arnold; Sarah Ann Haigh (37) Wombwell Barnsley; Alice Haigh (27) Wombwell Barnsley and Hilda Hyde (16) 7 Cottage Row Daybrook.
John Hyde probably died in 1934 (J/F/M), his wife has not yet been traced after signing for Jack's medals in 1921.
Of Jack's surviving siblings:
James married a widow, Annie Elizabeth Bateman (née Haigh), at Breedon on Dearne in December 1905. His wife had married John William Bateman, a coal miner, in 1895 (reg. Dewsbury) by whom she had at least four children. John Bateman died in 1905 (reg. Doncaster) aged 33. James and Annie were living on Summer Lane, Wombwell, in 1911 with three of Annie's children James, Polly and Joseph Bateman, all of whom later took the surname Hyde, and their daughter Lilian. According to the census Lilian was the only one of their three children to survive infancy but there is an army record that shows they had a daughter Elizabeth Ann b. 1909 and subsequently Mary b. 1911 and Hilda b. 1914. James attested on 2 December 1914 and served in the 13th Bn York and Lancaster Regiment (1205 Private) and was discharged on 14 March 1916 (served 1y 104d). James and Annie were living on Hall Street, Wombwell, in 1939 when the England & Wales Register was compiled. He died in 1947 (reg. Staincross Yorkshire).
Sarah Ann married Arthur Haigh, a miner, in 1905. In 1911 they were living in Wombwell with their children Sarah Alice and Arthur. Arthur Haigh snr. enlisted in the East Lancashire Regiment (238038 Private) in 1915 and served at home from 10 March 1915 then with the BEF France from 10 April 1916 to 4 November 1918. He was discharged on 22 January 1919 to Almond Street, Wombwell. In 1939 Arthur and Sarah were probably living in Leeds.
William, a colliery labourer, probably married Annie Kightley in 1909 (reg. Basford). In 1911 William and Annie were living off Furlong Street, Arnold, with Annie's three daughters Eliza Ann (11), Florence May (9) and Annie Kightley (6). William and Annie were living on Furlong Avenue, Arnold, in 1939; William was unemployed. He probably died in 1949.
Alice married Lewis Haigh, a coal miner, in 1906 (reg. Barnsley). In 1911 they were living on Alma Street, Wombwell, with their son George. The couple had returned to Arnold by 1939; Lewis was a coal hewer and Alice a laundry hand. Also in the home was their son Joseph Thomas, a driller for a cycle manufacturer but who was also a member of Arnold Urban District Council's Decontaminator Squad. Alice, now widowed, was living at 7 Cottage Row, Daybrook, her parents' former home, when she died in 1962.